Finding the Third Proportional to 57,972.50 and 82,705.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,972.50 : 82,705.50 = 82,705.50 : x
2. Step 2: Convert to fraction form
   57,972.50/82,705.50 = 82,705.50/x
3. Step 3: Cross multiply
   57,972.50x = 82,705.50 × 82,705.50
4. Step 4: Simplify right side
   57,972.50x = 6,840,199,730.25
5. Step 5: Solve for x
   x = 6,840,199,730.25/57,972.50
6. Step 6: Final answer
   x = 117,990.42