Finding the Third Proportional to 117,910 and 254,492.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,910 : 254,492.50 = 254,492.50 : x
2. Step 2: Convert to fraction form
   117,910/254,492.50 = 254,492.50/x
3. Step 3: Cross multiply
   117,910x = 254,492.50 × 254,492.50
4. Step 4: Simplify right side
   117,910x = 64,766,432,556.25
5. Step 5: Solve for x
   x = 64,766,432,556.25/117,910
6. Step 6: Final answer
   x = 549,287.02