Finding the Third Proportional to 199,552 and 309,821.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,552 : 309,821.50 = 309,821.50 : x
2. Step 2: Convert to fraction form
   199,552/309,821.50 = 309,821.50/x
3. Step 3: Cross multiply
   199,552x = 309,821.50 × 309,821.50
4. Step 4: Simplify right side
   199,552x = 95,989,361,862.25
5. Step 5: Solve for x
   x = 95,989,361,862.25/199,552
6. Step 6: Final answer
   x = 481,024.30