Finding the Third Proportional to 56,002.50 and 86,722.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,002.50 : 86,722.50 = 86,722.50 : x
2. Step 2: Convert to fraction form
   56,002.50/86,722.50 = 86,722.50/x
3. Step 3: Cross multiply
   56,002.50x = 86,722.50 × 86,722.50
4. Step 4: Simplify right side
   56,002.50x = 7,520,792,006.25
5. Step 5: Solve for x
   x = 7,520,792,006.25/56,002.50
6. Step 6: Final answer
   x = 134,293.86