Finding the Third Proportional to 1,615,646 and 3,398,428

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615,646 : 3,398,428 = 3,398,428 : x
2. Step 2: Convert to fraction form
   1,615,646/3,398,428 = 3,398,428/x
3. Step 3: Cross multiply
   1,615,646x = 3,398,428 × 3,398,428
4. Step 4: Simplify right side
   1,615,646x = 11,549,312,871,184
5. Step 5: Solve for x
   x = 11,549,312,871,184/1,615,646
6. Step 6: Final answer
   x = 7,148,417.95