Finding the Third Proportional to 3,343,616 and 7,891,712

Step by Step Solution

1. Step 1: Write the proportion equation
   3,343,616 : 7,891,712 = 7,891,712 : x
2. Step 2: Convert to fraction form
   3,343,616/7,891,712 = 7,891,712/x
3. Step 3: Cross multiply
   3,343,616x = 7,891,712 × 7,891,712
4. Step 4: Simplify right side
   3,343,616x = 62,279,118,290,944
5. Step 5: Solve for x
   x = 62,279,118,290,944/3,343,616
6. Step 6: Final answer
   x = 18,626,277.15