Finding the Third Proportional to 42,940.13 and 65,685.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42,940.13 : 65,685.94 = 65,685.94 : x
2. Step 2: Convert to fraction form
   42,940.13/65,685.94 = 65,685.94/x
3. Step 3: Cross multiply
   42,940.13x = 65,685.94 × 65,685.94
4. Step 4: Simplify right side
   42,940.13x = 4,314,642,385.25
5. Step 5: Solve for x
   x = 4,314,642,385.25/42,940.13
6. Step 6: Final answer
   x = 100,480.43