Finding the Third Proportional to 1,600,641 and 3,778,407

Step by Step Solution

1. Step 1: Write the proportion equation
   1,600,641 : 3,778,407 = 3,778,407 : x
2. Step 2: Convert to fraction form
   1,600,641/3,778,407 = 3,778,407/x
3. Step 3: Cross multiply
   1,600,641x = 3,778,407 × 3,778,407
4. Step 4: Simplify right side
   1,600,641x = 14,276,359,457,649
5. Step 5: Solve for x
   x = 14,276,359,457,649/1,600,641
6. Step 6: Final answer
   x = 8,919,151.43