Finding the Third Proportional to 147,654.56 and 316,288.13

Step by Step Solution

1. Step 1: Write the proportion equation
   147,654.56 : 316,288.13 = 316,288.13 : x
2. Step 2: Convert to fraction form
   147,654.56/316,288.13 = 316,288.13/x
3. Step 3: Cross multiply
   147,654.56x = 316,288.13 × 316,288.13
4. Step 4: Simplify right side
   147,654.56x = 100,038,178,016.02
5. Step 5: Solve for x
   x = 100,038,178,016.02/147,654.56
6. Step 6: Final answer
   x = 677,514.98