Finding the Third Proportional to 512,402 and 729,925.50

Step by Step Solution

1. Step 1: Write the proportion equation
   512,402 : 729,925.50 = 729,925.50 : x
2. Step 2: Convert to fraction form
   512,402/729,925.50 = 729,925.50/x
3. Step 3: Cross multiply
   512,402x = 729,925.50 × 729,925.50
4. Step 4: Simplify right side
   512,402x = 532,791,235,550.25
5. Step 5: Solve for x
   x = 532,791,235,550.25/512,402
6. Step 6: Final answer
   x = 1,039,791.48