Finding the Third Proportional to 60,557.63 and 86,685.19

Step by Step Solution

1. Step 1: Write the proportion equation
   60,557.63 : 86,685.19 = 86,685.19 : x
2. Step 2: Convert to fraction form
   60,557.63/86,685.19 = 86,685.19/x
3. Step 3: Cross multiply
   60,557.63x = 86,685.19 × 86,685.19
4. Step 4: Simplify right side
   60,557.63x = 7,514,321,731.91
5. Step 5: Solve for x
   x = 7,514,321,731.91/60,557.63
6. Step 6: Final answer
   x = 124,085.48