Finding the Third Proportional to 34,403.75 and 69,775.75

Step by Step Solution

1. Step 1: Write the proportion equation
   34,403.75 : 69,775.75 = 69,775.75 : x
2. Step 2: Convert to fraction form
   34,403.75/69,775.75 = 69,775.75/x
3. Step 3: Cross multiply
   34,403.75x = 69,775.75 × 69,775.75
4. Step 4: Simplify right side
   34,403.75x = 4,868,655,288.06
5. Step 5: Solve for x
   x = 4,868,655,288.06/34,403.75
6. Step 6: Final answer
   x = 141,515.25