Finding the Third Proportional to 89,562 and 139,791

Step by Step Solution

1. Step 1: Write the proportion equation
   89,562 : 139,791 = 139,791 : x
2. Step 2: Convert to fraction form
   89,562/139,791 = 139,791/x
3. Step 3: Cross multiply
   89,562x = 139,791 × 139,791
4. Step 4: Simplify right side
   89,562x = 19,541,523,681
5. Step 5: Solve for x
   x = 19,541,523,681/89,562
6. Step 6: Final answer
   x = 218,189.90