Finding the Third Proportional to 91,978.50 and 141,735

Step by Step Solution

1. Step 1: Write the proportion equation
   91,978.50 : 141,735 = 141,735 : x
2. Step 2: Convert to fraction form
   91,978.50/141,735 = 141,735/x
3. Step 3: Cross multiply
   91,978.50x = 141,735 × 141,735
4. Step 4: Simplify right side
   91,978.50x = 20,088,810,225
5. Step 5: Solve for x
   x = 20,088,810,225/91,978.50
6. Step 6: Final answer
   x = 218,407.67