Finding the Third Proportional to 91,812 and 141,569

Step by Step Solution

1. Step 1: Write the proportion equation
   91,812 : 141,569 = 141,569 : x
2. Step 2: Convert to fraction form
   91,812/141,569 = 141,569/x
3. Step 3: Cross multiply
   91,812x = 141,569 × 141,569
4. Step 4: Simplify right side
   91,812x = 20,041,781,761
5. Step 5: Solve for x
   x = 20,041,781,761/91,812
6. Step 6: Final answer
   x = 218,291.53