Finding the Third Proportional to 510,598.69 and 693,787.78

Step by Step Solution

1. Step 1: Write the proportion equation
   510,598.69 : 693,787.78 = 693,787.78 : x
2. Step 2: Convert to fraction form
   510,598.69/693,787.78 = 693,787.78/x
3. Step 3: Cross multiply
   510,598.69x = 693,787.78 × 693,787.78
4. Step 4: Simplify right side
   510,598.69x = 481,341,485,411.80
5. Step 5: Solve for x
   x = 481,341,485,411.80/510,598.69
6. Step 6: Final answer
   x = 942,700.20