Finding the Third Proportional to 105,478,493.15 and 227,157,556.15

Step by Step Solution

1. Step 1: Write the proportion equation
   105,478,493.15 : 227,157,556.15 = 227,157,556.15 : x
2. Step 2: Convert to fraction form
   105,478,493.15/227,157,556.15 = 227,157,556.15/x
3. Step 3: Cross multiply
   105,478,493.15x = 227,157,556.15 × 227,157,556.15
4. Step 4: Simplify right side
   105,478,493.15x = 51,600,555,315,331,672
5. Step 5: Solve for x
   x = 51,600,555,315,331,672/105,478,493.15
6. Step 6: Final answer
   x = 489,204,517.19