Finding the Third Proportional to 118,139.50 and 255,962

Step by Step Solution

1. Step 1: Write the proportion equation
   118,139.50 : 255,962 = 255,962 : x
2. Step 2: Convert to fraction form
   118,139.50/255,962 = 255,962/x
3. Step 3: Cross multiply
   118,139.50x = 255,962 × 255,962
4. Step 4: Simplify right side
   118,139.50x = 65,516,545,444
5. Step 5: Solve for x
   x = 65,516,545,444/118,139.50
6. Step 6: Final answer
   x = 554,569.35