Finding the Third Proportional to 745,419 and 993,136.50

Step by Step Solution

1. Step 1: Write the proportion equation
   745,419 : 993,136.50 = 993,136.50 : x
2. Step 2: Convert to fraction form
   745,419/993,136.50 = 993,136.50/x
3. Step 3: Cross multiply
   745,419x = 993,136.50 × 993,136.50
4. Step 4: Simplify right side
   745,419x = 986,320,107,632.25
5. Step 5: Solve for x
   x = 986,320,107,632.25/745,419
6. Step 6: Final answer
   x = 1,323,175.43