Finding the Third Proportional to 118,155.50 and 254,863

Step by Step Solution

1. Step 1: Write the proportion equation
   118,155.50 : 254,863 = 254,863 : x
2. Step 2: Convert to fraction form
   118,155.50/254,863 = 254,863/x
3. Step 3: Cross multiply
   118,155.50x = 254,863 × 254,863
4. Step 4: Simplify right side
   118,155.50x = 64,955,148,769
5. Step 5: Solve for x
   x = 64,955,148,769/118,155.50
6. Step 6: Final answer
   x = 549,742.91