Finding the Third Proportional to 513,541.50 and 801,402

Step by Step Solution

1. Step 1: Write the proportion equation
   513,541.50 : 801,402 = 801,402 : x
2. Step 2: Convert to fraction form
   513,541.50/801,402 = 801,402/x
3. Step 3: Cross multiply
   513,541.50x = 801,402 × 801,402
4. Step 4: Simplify right side
   513,541.50x = 642,245,165,604
5. Step 5: Solve for x
   x = 642,245,165,604/513,541.50
6. Step 6: Final answer
   x = 1,250,619.80