Finding the Third Proportional to 3,590,838 and 7,679,340

Step by Step Solution

1. Step 1: Write the proportion equation
   3,590,838 : 7,679,340 = 7,679,340 : x
2. Step 2: Convert to fraction form
   3,590,838/7,679,340 = 7,679,340/x
3. Step 3: Cross multiply
   3,590,838x = 7,679,340 × 7,679,340
4. Step 4: Simplify right side
   3,590,838x = 58,972,262,835,600
5. Step 5: Solve for x
   x = 58,972,262,835,600/3,590,838
6. Step 6: Final answer
   x = 16,422,980.61