Finding the Third Proportional to 63,716 and 89,138

Step by Step Solution

1. Step 1: Write the proportion equation
   63,716 : 89,138 = 89,138 : x
2. Step 2: Convert to fraction form
   63,716/89,138 = 89,138/x
3. Step 3: Cross multiply
   63,716x = 89,138 × 89,138
4. Step 4: Simplify right side
   63,716x = 7,945,583,044
5. Step 5: Solve for x
   x = 7,945,583,044/63,716
6. Step 6: Final answer
   x = 124,703.11