Finding the Third Proportional to 29,119.25 and 63,690.75

Step by Step Solution

1. Step 1: Write the proportion equation
   29,119.25 : 63,690.75 = 63,690.75 : x
2. Step 2: Convert to fraction form
   29,119.25/63,690.75 = 63,690.75/x
3. Step 3: Cross multiply
   29,119.25x = 63,690.75 × 63,690.75
4. Step 4: Simplify right side
   29,119.25x = 4,056,511,635.56
5. Step 5: Solve for x
   x = 4,056,511,635.56/29,119.25
6. Step 6: Final answer
   x = 139,306.87