Finding the Third Proportional to 63,898.88 and 89,366.63

Step by Step Solution

1. Step 1: Write the proportion equation
   63,898.88 : 89,366.63 = 89,366.63 : x
2. Step 2: Convert to fraction form
   63,898.88/89,366.63 = 89,366.63/x
3. Step 3: Cross multiply
   63,898.88x = 89,366.63 × 89,366.63
4. Step 4: Simplify right side
   63,898.88x = 7,986,393,663.89
5. Step 5: Solve for x
   x = 7,986,393,663.89/63,898.88
6. Step 6: Final answer
   x = 124,984.89