Finding the Third Proportional to 42,384.50 and 57,561.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,384.50 : 57,561.50 = 57,561.50 : x
2. Step 2: Convert to fraction form
   42,384.50/57,561.50 = 57,561.50/x
3. Step 3: Cross multiply
   42,384.50x = 57,561.50 × 57,561.50
4. Step 4: Simplify right side
   42,384.50x = 3,313,326,282.25
5. Step 5: Solve for x
   x = 3,313,326,282.25/42,384.50
6. Step 6: Final answer
   x = 78,173.07