Finding the Third Proportional to 28,140.75 and 60,216.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,140.75 : 60,216.75 = 60,216.75 : x
2. Step 2: Convert to fraction form
   28,140.75/60,216.75 = 60,216.75/x
3. Step 3: Cross multiply
   28,140.75x = 60,216.75 × 60,216.75
4. Step 4: Simplify right side
   28,140.75x = 3,626,056,980.56
5. Step 5: Solve for x
   x = 3,626,056,980.56/28,140.75
6. Step 6: Final answer
   x = 128,854.31