Finding the Third Proportional to 117,157.31 and 242,622

Step by Step Solution

1. Step 1: Write the proportion equation
   117,157.31 : 242,622 = 242,622 : x
2. Step 2: Convert to fraction form
   117,157.31/242,622 = 242,622/x
3. Step 3: Cross multiply
   117,157.31x = 242,622 × 242,622
4. Step 4: Simplify right side
   117,157.31x = 58,865,434,884
5. Step 5: Solve for x
   x = 58,865,434,884/117,157.31
6. Step 6: Final answer
   x = 502,447.81