Finding the Third Proportional to 3,939,591 and 8,626,522

Step by Step Solution

1. Step 1: Write the proportion equation
   3,939,591 : 8,626,522 = 8,626,522 : x
2. Step 2: Convert to fraction form
   3,939,591/8,626,522 = 8,626,522/x
3. Step 3: Cross multiply
   3,939,591x = 8,626,522 × 8,626,522
4. Step 4: Simplify right side
   3,939,591x = 74,416,881,816,484
5. Step 5: Solve for x
   x = 74,416,881,816,484/3,939,591
6. Step 6: Final answer
   x = 18,889,494.32