Finding the Third Proportional to 1,720,320 and 2,406,108

Step by Step Solution

1. Step 1: Write the proportion equation
   1,720,320 : 2,406,108 = 2,406,108 : x
2. Step 2: Convert to fraction form
   1,720,320/2,406,108 = 2,406,108/x
3. Step 3: Cross multiply
   1,720,320x = 2,406,108 × 2,406,108
4. Step 4: Simplify right side
   1,720,320x = 5,789,355,707,664
5. Step 5: Solve for x
   x = 5,789,355,707,664/1,720,320
6. Step 6: Final answer
   x = 3,365,278.38