Finding the Third Proportional to 54,856.50 and 81,925.88

Step by Step Solution

1. Step 1: Write the proportion equation
   54,856.50 : 81,925.88 = 81,925.88 : x
2. Step 2: Convert to fraction form
   54,856.50/81,925.88 = 81,925.88/x
3. Step 3: Cross multiply
   54,856.50x = 81,925.88 × 81,925.88
4. Step 4: Simplify right side
   54,856.50x = 6,711,848,994.52
5. Step 5: Solve for x
   x = 6,711,848,994.52/54,856.50
6. Step 6: Final answer
   x = 122,352.85