Finding the Third Proportional to 56,279 and 89,117

Step by Step Solution

1. Step 1: Write the proportion equation
   56,279 : 89,117 = 89,117 : x
2. Step 2: Convert to fraction form
   56,279/89,117 = 89,117/x
3. Step 3: Cross multiply
   56,279x = 89,117 × 89,117
4. Step 4: Simplify right side
   56,279x = 7,941,839,689
5. Step 5: Solve for x
   x = 7,941,839,689/56,279
6. Step 6: Final answer
   x = 141,115.51