Finding the Third Proportional to 1,578,492 and 3,409,209

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578,492 : 3,409,209 = 3,409,209 : x
2. Step 2: Convert to fraction form
   1,578,492/3,409,209 = 3,409,209/x
3. Step 3: Cross multiply
   1,578,492x = 3,409,209 × 3,409,209
4. Step 4: Simplify right side
   1,578,492x = 11,622,706,005,681
5. Step 5: Solve for x
   x = 11,622,706,005,681/1,578,492
6. Step 6: Final answer
   x = 7,363,170.68