Finding the Third Proportional to 116,658 and 255,913.88

Step by Step Solution

1. Step 1: Write the proportion equation
   116,658 : 255,913.88 = 255,913.88 : x
2. Step 2: Convert to fraction form
   116,658/255,913.88 = 255,913.88/x
3. Step 3: Cross multiply
   116,658x = 255,913.88 × 255,913.88
4. Step 4: Simplify right side
   116,658x = 65,491,911,417.52
5. Step 5: Solve for x
   x = 65,491,911,417.52/116,658
6. Step 6: Final answer
   x = 561,400.94