Finding the Third Proportional to 75,429.31 and 103,904.69

Step by Step Solution

1. Step 1: Write the proportion equation
   75,429.31 : 103,904.69 = 103,904.69 : x
2. Step 2: Convert to fraction form
   75,429.31/103,904.69 = 103,904.69/x
3. Step 3: Cross multiply
   75,429.31x = 103,904.69 × 103,904.69
4. Step 4: Simplify right side
   75,429.31x = 10,796,184,084.47
5. Step 5: Solve for x
   x = 10,796,184,084.47/75,429.31
6. Step 6: Final answer
   x = 143,129.82