Finding the Third Proportional to 3,687,091 and 7,668,486

Step by Step Solution

1. Step 1: Write the proportion equation
   3,687,091 : 7,668,486 = 7,668,486 : x
2. Step 2: Convert to fraction form
   3,687,091/7,668,486 = 7,668,486/x
3. Step 3: Cross multiply
   3,687,091x = 7,668,486 × 7,668,486
4. Step 4: Simplify right side
   3,687,091x = 58,805,677,532,196
5. Step 5: Solve for x
   x = 58,805,677,532,196/3,687,091
6. Step 6: Final answer
   x = 15,949,071.38