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Finding the Third Proportional to 265,978.13 and 399,232.69

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Solution

The third proportional to 265,978.13 and 399,232.69 is: 599,247.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,978.13 : 399,232.69 = 399,232.69 : x
  2. Step 2: Convert to fraction form
    265,978.13/399,232.69 = 399,232.69/x
  3. Step 3: Cross multiply
    265,978.13x = 399,232.69 × 399,232.69
  4. Step 4: Simplify right side
    265,978.13x = 159,386,738,768.47
  5. Step 5: Solve for x
    x = 159,386,738,768.47/265,978.13
  6. Step 6: Final answer
    x = 599,247.55

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