Finding the Third Proportional to 61,288 and 84,398

Step by Step Solution

1. Step 1: Write the proportion equation
   61,288 : 84,398 = 84,398 : x
2. Step 2: Convert to fraction form
   61,288/84,398 = 84,398/x
3. Step 3: Cross multiply
   61,288x = 84,398 × 84,398
4. Step 4: Simplify right side
   61,288x = 7,123,022,404
5. Step 5: Solve for x
   x = 7,123,022,404/61,288
6. Step 6: Final answer
   x = 116,222.14