Finding the Third Proportional to 42,642.75 and 63,964.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,642.75 : 63,964.50 = 63,964.50 : x
2. Step 2: Convert to fraction form
   42,642.75/63,964.50 = 63,964.50/x
3. Step 3: Cross multiply
   42,642.75x = 63,964.50 × 63,964.50
4. Step 4: Simplify right side
   42,642.75x = 4,091,457,260.25
5. Step 5: Solve for x
   x = 4,091,457,260.25/42,642.75
6. Step 6: Final answer
   x = 95,947.31