Finding the Third Proportional to 29,860.31 and 45,172.69

Step by Step Solution

1. Step 1: Write the proportion equation
   29,860.31 : 45,172.69 = 45,172.69 : x
2. Step 2: Convert to fraction form
   29,860.31/45,172.69 = 45,172.69/x
3. Step 3: Cross multiply
   29,860.31x = 45,172.69 × 45,172.69
4. Step 4: Simplify right side
   29,860.31x = 2,040,571,695.97
5. Step 5: Solve for x
   x = 2,040,571,695.97/29,860.31
6. Step 6: Final answer
   x = 68,337.25