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Finding the Third Proportional to 265,868 and 578,392

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Solution

The third proportional to 265,868 and 578,392 is: 1,258,283.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,868 : 578,392 = 578,392 : x
  2. Step 2: Convert to fraction form
    265,868/578,392 = 578,392/x
  3. Step 3: Cross multiply
    265,868x = 578,392 × 578,392
  4. Step 4: Simplify right side
    265,868x = 334,537,305,664
  5. Step 5: Solve for x
    x = 334,537,305,664/265,868
  6. Step 6: Final answer
    x = 1,258,283.46

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.