Finding the Third Proportional to 29,131.50 and 42,739.50

Step by Step Solution

1. Step 1: Write the proportion equation
   29,131.50 : 42,739.50 = 42,739.50 : x
2. Step 2: Convert to fraction form
   29,131.50/42,739.50 = 42,739.50/x
3. Step 3: Cross multiply
   29,131.50x = 42,739.50 × 42,739.50
4. Step 4: Simplify right side
   29,131.50x = 1,826,664,860.25
5. Step 5: Solve for x
   x = 1,826,664,860.25/29,131.50
6. Step 6: Final answer
   x = 62,704.11