Finding the Third Proportional to 42,304.78 and 61,475.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,304.78 : 61,475.20 = 61,475.20 : x
2. Step 2: Convert to fraction form
   42,304.78/61,475.20 = 61,475.20/x
3. Step 3: Cross multiply
   42,304.78x = 61,475.20 × 61,475.20
4. Step 4: Simplify right side
   42,304.78x = 3,779,200,599.26
5. Step 5: Solve for x
   x = 3,779,200,599.26/42,304.78
6. Step 6: Final answer
   x = 89,332.71