Finding the Third Proportional to 514,407 and 801,058.50

Step by Step Solution

1. Step 1: Write the proportion equation
   514,407 : 801,058.50 = 801,058.50 : x
2. Step 2: Convert to fraction form
   514,407/801,058.50 = 801,058.50/x
3. Step 3: Cross multiply
   514,407x = 801,058.50 × 801,058.50
4. Step 4: Simplify right side
   514,407x = 641,694,720,422.25
5. Step 5: Solve for x
   x = 641,694,720,422.25/514,407
6. Step 6: Final answer
   x = 1,247,445.54