Finding the Third Proportional to 69,329.81 and 99,073.69

Step by Step Solution

1. Step 1: Write the proportion equation
   69,329.81 : 99,073.69 = 99,073.69 : x
2. Step 2: Convert to fraction form
   69,329.81/99,073.69 = 99,073.69/x
3. Step 3: Cross multiply
   69,329.81x = 99,073.69 × 99,073.69
4. Step 4: Simplify right side
   69,329.81x = 9,815,595,554.85
5. Step 5: Solve for x
   x = 9,815,595,554.85/69,329.81
6. Step 6: Final answer
   x = 141,578.28