Finding the Third Proportional to 28,111.50 and 61,120.13

Step by Step Solution

1. Step 1: Write the proportion equation
   28,111.50 : 61,120.13 = 61,120.13 : x
2. Step 2: Convert to fraction form
   28,111.50/61,120.13 = 61,120.13/x
3. Step 3: Cross multiply
   28,111.50x = 61,120.13 × 61,120.13
4. Step 4: Simplify right side
   28,111.50x = 3,735,669,680.02
5. Step 5: Solve for x
   x = 3,735,669,680.02/28,111.50
6. Step 6: Final answer
   x = 132,887.60