Finding the Third Proportional to 1,668,391 and 3,642,592

Step by Step Solution

1. Step 1: Write the proportion equation
   1,668,391 : 3,642,592 = 3,642,592 : x
2. Step 2: Convert to fraction form
   1,668,391/3,642,592 = 3,642,592/x
3. Step 3: Cross multiply
   1,668,391x = 3,642,592 × 3,642,592
4. Step 4: Simplify right side
   1,668,391x = 13,268,476,478,464
5. Step 5: Solve for x
   x = 13,268,476,478,464/1,668,391
6. Step 6: Final answer
   x = 7,952,857.86