Finding the Third Proportional to 69,498 and 141,454.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,498 : 141,454.50 = 141,454.50 : x
2. Step 2: Convert to fraction form
   69,498/141,454.50 = 141,454.50/x
3. Step 3: Cross multiply
   69,498x = 141,454.50 × 141,454.50
4. Step 4: Simplify right side
   69,498x = 20,009,375,570.25
5. Step 5: Solve for x
   x = 20,009,375,570.25/69,498
6. Step 6: Final answer
   x = 287,912.97