Finding the Third Proportional to 3,680,964 and 7,873,686

Step by Step Solution

1. Step 1: Write the proportion equation
   3,680,964 : 7,873,686 = 7,873,686 : x
2. Step 2: Convert to fraction form
   3,680,964/7,873,686 = 7,873,686/x
3. Step 3: Cross multiply
   3,680,964x = 7,873,686 × 7,873,686
4. Step 4: Simplify right side
   3,680,964x = 61,994,931,226,596
5. Step 5: Solve for x
   x = 61,994,931,226,596/3,680,964
6. Step 6: Final answer
   x = 16,842,036.82