Finding the Third Proportional to 56,250 and 86,710.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,250 : 86,710.50 = 86,710.50 : x
2. Step 2: Convert to fraction form
   56,250/86,710.50 = 86,710.50/x
3. Step 3: Cross multiply
   56,250x = 86,710.50 × 86,710.50
4. Step 4: Simplify right side
   56,250x = 7,518,710,810.25
5. Step 5: Solve for x
   x = 7,518,710,810.25/56,250
6. Step 6: Final answer
   x = 133,665.97