Finding the Third Proportional to 59,101.50 and 86,707.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,101.50 : 86,707.50 = 86,707.50 : x
2. Step 2: Convert to fraction form
   59,101.50/86,707.50 = 86,707.50/x
3. Step 3: Cross multiply
   59,101.50x = 86,707.50 × 86,707.50
4. Step 4: Simplify right side
   59,101.50x = 7,518,190,556.25
5. Step 5: Solve for x
   x = 7,518,190,556.25/59,101.50
6. Step 6: Final answer
   x = 127,208.12