Finding the Third Proportional to 61,252 and 89,211

Step by Step Solution

1. Step 1: Write the proportion equation
   61,252 : 89,211 = 89,211 : x
2. Step 2: Convert to fraction form
   61,252/89,211 = 89,211/x
3. Step 3: Cross multiply
   61,252x = 89,211 × 89,211
4. Step 4: Simplify right side
   61,252x = 7,958,602,521
5. Step 5: Solve for x
   x = 7,958,602,521/61,252
6. Step 6: Final answer
   x = 129,932.13