Finding the Third Proportional to 2,199,312 and 3,220,236

Step by Step Solution

1. Step 1: Write the proportion equation
   2,199,312 : 3,220,236 = 3,220,236 : x
2. Step 2: Convert to fraction form
   2,199,312/3,220,236 = 3,220,236/x
3. Step 3: Cross multiply
   2,199,312x = 3,220,236 × 3,220,236
4. Step 4: Simplify right side
   2,199,312x = 10,369,919,895,696
5. Step 5: Solve for x
   x = 10,369,919,895,696/2,199,312
6. Step 6: Final answer
   x = 4,715,074.48