Finding the Third Proportional to 117,475.31 and 256,122

Step by Step Solution

1. Step 1: Write the proportion equation
   117,475.31 : 256,122 = 256,122 : x
2. Step 2: Convert to fraction form
   117,475.31/256,122 = 256,122/x
3. Step 3: Cross multiply
   117,475.31x = 256,122 × 256,122
4. Step 4: Simplify right side
   117,475.31x = 65,598,478,884
5. Step 5: Solve for x
   x = 65,598,478,884/117,475.31
6. Step 6: Final answer
   x = 558,402.25