Finding the Third Proportional to 63,698 and 89,091

Step by Step Solution

1. Step 1: Write the proportion equation
   63,698 : 89,091 = 89,091 : x
2. Step 2: Convert to fraction form
   63,698/89,091 = 89,091/x
3. Step 3: Cross multiply
   63,698x = 89,091 × 89,091
4. Step 4: Simplify right side
   63,698x = 7,937,206,281
5. Step 5: Solve for x
   x = 7,937,206,281/63,698
6. Step 6: Final answer
   x = 124,606.84