Finding the Third Proportional to 42,045 and 61,449

Step by Step Solution

1. Step 1: Write the proportion equation
   42,045 : 61,449 = 61,449 : x
2. Step 2: Convert to fraction form
   42,045/61,449 = 61,449/x
3. Step 3: Cross multiply
   42,045x = 61,449 × 61,449
4. Step 4: Simplify right side
   42,045x = 3,775,979,601
5. Step 5: Solve for x
   x = 3,775,979,601/42,045
6. Step 6: Final answer
   x = 89,808.05