Finding the Third Proportional to 66,924 and 89,222

Step by Step Solution

1. Step 1: Write the proportion equation
   66,924 : 89,222 = 89,222 : x
2. Step 2: Convert to fraction form
   66,924/89,222 = 89,222/x
3. Step 3: Cross multiply
   66,924x = 89,222 × 89,222
4. Step 4: Simplify right side
   66,924x = 7,960,565,284
5. Step 5: Solve for x
   x = 7,960,565,284/66,924
6. Step 6: Final answer
   x = 118,949.33