Finding the Third Proportional to 58,218.50 and 87,666.75

Step by Step Solution

1. Step 1: Write the proportion equation
   58,218.50 : 87,666.75 = 87,666.75 : x
2. Step 2: Convert to fraction form
   58,218.50/87,666.75 = 87,666.75/x
3. Step 3: Cross multiply
   58,218.50x = 87,666.75 × 87,666.75
4. Step 4: Simplify right side
   58,218.50x = 7,685,459,055.56
5. Step 5: Solve for x
   x = 7,685,459,055.56/58,218.50
6. Step 6: Final answer
   x = 132,010.60