Finding the Third Proportional to 118,080 and 254,821.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,080 : 254,821.50 = 254,821.50 : x
2. Step 2: Convert to fraction form
   118,080/254,821.50 = 254,821.50/x
3. Step 3: Cross multiply
   118,080x = 254,821.50 × 254,821.50
4. Step 4: Simplify right side
   118,080x = 64,933,996,862.25
5. Step 5: Solve for x
   x = 64,933,996,862.25/118,080
6. Step 6: Final answer
   x = 549,915.29