Finding the Third Proportional to 56,266.52 and 86,739.61

Step by Step Solution

1. Step 1: Write the proportion equation
   56,266.52 : 86,739.61 = 86,739.61 : x
2. Step 2: Convert to fraction form
   56,266.52/86,739.61 = 86,739.61/x
3. Step 3: Cross multiply
   56,266.52x = 86,739.61 × 86,739.61
4. Step 4: Simplify right side
   56,266.52x = 7,523,759,834.53
5. Step 5: Solve for x
   x = 7,523,759,834.53/56,266.52
6. Step 6: Final answer
   x = 133,716.45