Finding the Third Proportional to 3,807,472 and 8,309,492

Step by Step Solution

1. Step 1: Write the proportion equation
   3,807,472 : 8,309,492 = 8,309,492 : x
2. Step 2: Convert to fraction form
   3,807,472/8,309,492 = 8,309,492/x
3. Step 3: Cross multiply
   3,807,472x = 8,309,492 × 8,309,492
4. Step 4: Simplify right side
   3,807,472x = 69,047,657,298,064
5. Step 5: Solve for x
   x = 69,047,657,298,064/3,807,472
6. Step 6: Final answer
   x = 18,134,777.43