Finding the Third Proportional to 56,686.50 and 88,476

Step by Step Solution

1. Step 1: Write the proportion equation
   56,686.50 : 88,476 = 88,476 : x
2. Step 2: Convert to fraction form
   56,686.50/88,476 = 88,476/x
3. Step 3: Cross multiply
   56,686.50x = 88,476 × 88,476
4. Step 4: Simplify right side
   56,686.50x = 7,828,002,576
5. Step 5: Solve for x
   x = 7,828,002,576/56,686.50
6. Step 6: Final answer
   x = 138,092.89