Finding the Third Proportional to 726,136 and 1,578,204

Step by Step Solution

1. Step 1: Write the proportion equation
   726,136 : 1,578,204 = 1,578,204 : x
2. Step 2: Convert to fraction form
   726,136/1,578,204 = 1,578,204/x
3. Step 3: Cross multiply
   726,136x = 1,578,204 × 1,578,204
4. Step 4: Simplify right side
   726,136x = 2,490,727,865,616
5. Step 5: Solve for x
   x = 2,490,727,865,616/726,136
6. Step 6: Final answer
   x = 3,430,112.08