Finding the Third Proportional to 28,311 and 59,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,311 : 59,989.50 = 59,989.50 : x
2. Step 2: Convert to fraction form
   28,311/59,989.50 = 59,989.50/x
3. Step 3: Cross multiply
   28,311x = 59,989.50 × 59,989.50
4. Step 4: Simplify right side
   28,311x = 3,598,740,110.25
5. Step 5: Solve for x
   x = 3,598,740,110.25/28,311
6. Step 6: Final answer
   x = 127,114.55