Finding the Third Proportional to 740,664 and 1,109,136

Step by Step Solution

1. Step 1: Write the proportion equation
   740,664 : 1,109,136 = 1,109,136 : x
2. Step 2: Convert to fraction form
   740,664/1,109,136 = 1,109,136/x
3. Step 3: Cross multiply
   740,664x = 1,109,136 × 1,109,136
4. Step 4: Simplify right side
   740,664x = 1,230,182,666,496
5. Step 5: Solve for x
   x = 1,230,182,666,496/740,664
6. Step 6: Final answer
   x = 1,660,918.67