Finding the Third Proportional to 117,915.75 and 254,557.69

Step by Step Solution

1. Step 1: Write the proportion equation
   117,915.75 : 254,557.69 = 254,557.69 : x
2. Step 2: Convert to fraction form
   117,915.75/254,557.69 = 254,557.69/x
3. Step 3: Cross multiply
   117,915.75x = 254,557.69 × 254,557.69
4. Step 4: Simplify right side
   117,915.75x = 64,799,616,265.35
5. Step 5: Solve for x
   x = 64,799,616,265.35/117,915.75
6. Step 6: Final answer
   x = 549,541.65