Finding the Third Proportional to 3,815,328 and 8,293,312

Step by Step Solution

1. Step 1: Write the proportion equation
   3,815,328 : 8,293,312 = 8,293,312 : x
2. Step 2: Convert to fraction form
   3,815,328/8,293,312 = 8,293,312/x
3. Step 3: Cross multiply
   3,815,328x = 8,293,312 × 8,293,312
4. Step 4: Simplify right side
   3,815,328x = 68,779,023,929,344
5. Step 5: Solve for x
   x = 68,779,023,929,344/3,815,328
6. Step 6: Final answer
   x = 18,027,027.80