Finding the Third Proportional to 42,621.19 and 63,105.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,621.19 : 63,105.75 = 63,105.75 : x
2. Step 2: Convert to fraction form
   42,621.19/63,105.75 = 63,105.75/x
3. Step 3: Cross multiply
   42,621.19x = 63,105.75 × 63,105.75
4. Step 4: Simplify right side
   42,621.19x = 3,982,335,683.06
5. Step 5: Solve for x
   x = 3,982,335,683.06/42,621.19
6. Step 6: Final answer
   x = 93,435.59