Finding the Third Proportional to 1,604,390 and 2,406,939

Step by Step Solution

1. Step 1: Write the proportion equation
   1,604,390 : 2,406,939 = 2,406,939 : x
2. Step 2: Convert to fraction form
   1,604,390/2,406,939 = 2,406,939/x
3. Step 3: Cross multiply
   1,604,390x = 2,406,939 × 2,406,939
4. Step 4: Simplify right side
   1,604,390x = 5,793,355,349,721
5. Step 5: Solve for x
   x = 5,793,355,349,721/1,604,390
6. Step 6: Final answer
   x = 3,610,939.58