Finding the Third Proportional to 109,435.50 and 147,912.75

Step by Step Solution

1. Step 1: Write the proportion equation
   109,435.50 : 147,912.75 = 147,912.75 : x
2. Step 2: Convert to fraction form
   109,435.50/147,912.75 = 147,912.75/x
3. Step 3: Cross multiply
   109,435.50x = 147,912.75 × 147,912.75
4. Step 4: Simplify right side
   109,435.50x = 21,878,181,612.56
5. Step 5: Solve for x
   x = 21,878,181,612.56/109,435.50
6. Step 6: Final answer
   x = 199,918.51