Finding the Third Proportional to 69,472.69 and 141,400.69

Step by Step Solution

1. Step 1: Write the proportion equation
   69,472.69 : 141,400.69 = 141,400.69 : x
2. Step 2: Convert to fraction form
   69,472.69/141,400.69 = 141,400.69/x
3. Step 3: Cross multiply
   69,472.69x = 141,400.69 × 141,400.69
4. Step 4: Simplify right side
   69,472.69x = 19,994,154,425.47
5. Step 5: Solve for x
   x = 19,994,154,425.47/69,472.69
6. Step 6: Final answer
   x = 287,798.78