Finding the Third Proportional to 112,539 and 245,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,539 : 245,989.50 = 245,989.50 : x
2. Step 2: Convert to fraction form
   112,539/245,989.50 = 245,989.50/x
3. Step 3: Cross multiply
   112,539x = 245,989.50 × 245,989.50
4. Step 4: Simplify right side
   112,539x = 60,510,834,110.25
5. Step 5: Solve for x
   x = 60,510,834,110.25/112,539
6. Step 6: Final answer
   x = 537,687.68