Finding the Third Proportional to 398,307 and 597,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   398,307 : 597,892.50 = 597,892.50 : x
2. Step 2: Convert to fraction form
   398,307/597,892.50 = 597,892.50/x
3. Step 3: Cross multiply
   398,307x = 597,892.50 × 597,892.50
4. Step 4: Simplify right side
   398,307x = 357,475,441,556.25
5. Step 5: Solve for x
   x = 357,475,441,556.25/398,307
6. Step 6: Final answer
   x = 897,487.22