Finding the Third Proportional to 1,938,840 and 3,971,712

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938,840 : 3,971,712 = 3,971,712 : x
2. Step 2: Convert to fraction form
   1,938,840/3,971,712 = 3,971,712/x
3. Step 3: Cross multiply
   1,938,840x = 3,971,712 × 3,971,712
4. Step 4: Simplify right side
   1,938,840x = 15,774,496,210,944
5. Step 5: Solve for x
   x = 15,774,496,210,944/1,938,840
6. Step 6: Final answer
   x = 8,136,048.47