Finding the Third Proportional to 69,243 and 101,542.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,243 : 101,542.50 = 101,542.50 : x
2. Step 2: Convert to fraction form
   69,243/101,542.50 = 101,542.50/x
3. Step 3: Cross multiply
   69,243x = 101,542.50 × 101,542.50
4. Step 4: Simplify right side
   69,243x = 10,310,879,306.25
5. Step 5: Solve for x
   x = 10,310,879,306.25/69,243
6. Step 6: Final answer
   x = 148,908.62