Finding the Third Proportional to 56,865.38 and 89,197.88

Step by Step Solution

1. Step 1: Write the proportion equation
   56,865.38 : 89,197.88 = 89,197.88 : x
2. Step 2: Convert to fraction form
   56,865.38/89,197.88 = 89,197.88/x
3. Step 3: Cross multiply
   56,865.38x = 89,197.88 × 89,197.88
4. Step 4: Simplify right side
   56,865.38x = 7,956,260,904.52
5. Step 5: Solve for x
   x = 7,956,260,904.52/56,865.38
6. Step 6: Final answer
   x = 139,913.98