Finding the Third Proportional to 42,940.13 and 61,858.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,940.13 : 61,858.69 = 61,858.69 : x
2. Step 2: Convert to fraction form
   42,940.13/61,858.69 = 61,858.69/x
3. Step 3: Cross multiply
   42,940.13x = 61,858.69 × 61,858.69
4. Step 4: Simplify right side
   42,940.13x = 3,826,497,219.22
5. Step 5: Solve for x
   x = 3,826,497,219.22/42,940.13
6. Step 6: Final answer
   x = 89,112.39