Finding the Third Proportional to 111,157.31 and 147,789.56

Step by Step Solution

1. Step 1: Write the proportion equation
   111,157.31 : 147,789.56 = 147,789.56 : x
2. Step 2: Convert to fraction form
   111,157.31/147,789.56 = 147,789.56/x
3. Step 3: Cross multiply
   111,157.31x = 147,789.56 × 147,789.56
4. Step 4: Simplify right side
   111,157.31x = 21,841,754,783.94
5. Step 5: Solve for x
   x = 21,841,754,783.94/111,157.31
6. Step 6: Final answer
   x = 196,494.09