Finding the Third Proportional to 386,808 and 597,706.50

Step by Step Solution

1. Step 1: Write the proportion equation
   386,808 : 597,706.50 = 597,706.50 : x
2. Step 2: Convert to fraction form
   386,808/597,706.50 = 597,706.50/x
3. Step 3: Cross multiply
   386,808x = 597,706.50 × 597,706.50
4. Step 4: Simplify right side
   386,808x = 357,253,060,142.25
5. Step 5: Solve for x
   x = 357,253,060,142.25/386,808
6. Step 6: Final answer
   x = 923,592.74