Finding the Third Proportional to 3,971,810 and 8,503,492

Step by Step Solution

1. Step 1: Write the proportion equation
   3,971,810 : 8,503,492 = 8,503,492 : x
2. Step 2: Convert to fraction form
   3,971,810/8,503,492 = 8,503,492/x
3. Step 3: Cross multiply
   3,971,810x = 8,503,492 × 8,503,492
4. Step 4: Simplify right side
   3,971,810x = 72,309,376,194,064
5. Step 5: Solve for x
   x = 72,309,376,194,064/3,971,810
6. Step 6: Final answer
   x = 18,205,648.36