Finding the Third Proportional to 57,081 and 91,156.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,081 : 91,156.50 = 91,156.50 : x
2. Step 2: Convert to fraction form
   57,081/91,156.50 = 91,156.50/x
3. Step 3: Cross multiply
   57,081x = 91,156.50 × 91,156.50
4. Step 4: Simplify right side
   57,081x = 8,309,507,492.25
5. Step 5: Solve for x
   x = 8,309,507,492.25/57,081
6. Step 6: Final answer
   x = 145,573.96