Finding the Third Proportional to 42,891.75 and 61,877.06

Step by Step Solution

1. Step 1: Write the proportion equation
   42,891.75 : 61,877.06 = 61,877.06 : x
2. Step 2: Convert to fraction form
   42,891.75/61,877.06 = 61,877.06/x
3. Step 3: Cross multiply
   42,891.75x = 61,877.06 × 61,877.06
4. Step 4: Simplify right side
   42,891.75x = 3,828,770,863.63
5. Step 5: Solve for x
   x = 3,828,770,863.63/42,891.75
6. Step 6: Final answer
   x = 89,265.90