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Finding the Third Proportional to 372,717 and 818,653

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Solution

The third proportional to 372,717 and 818,653 is: 1,798,127.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,717 : 818,653 = 818,653 : x
  2. Step 2: Convert to fraction form
    372,717/818,653 = 818,653/x
  3. Step 3: Cross multiply
    372,717x = 818,653 × 818,653
  4. Step 4: Simplify right side
    372,717x = 670,192,734,409
  5. Step 5: Solve for x
    x = 670,192,734,409/372,717
  6. Step 6: Final answer
    x = 1,798,127.63

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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.