Finding the Third Proportional to 57,946.88 and 89,676.75

Step by Step Solution

1. Step 1: Write the proportion equation
   57,946.88 : 89,676.75 = 89,676.75 : x
2. Step 2: Convert to fraction form
   57,946.88/89,676.75 = 89,676.75/x
3. Step 3: Cross multiply
   57,946.88x = 89,676.75 × 89,676.75
4. Step 4: Simplify right side
   57,946.88x = 8,041,919,490.56
5. Step 5: Solve for x
   x = 8,041,919,490.56/57,946.88
6. Step 6: Final answer
   x = 138,780.90