Finding the Third Proportional to 2,931,678 and 4,484,707

Step by Step Solution

1. Step 1: Write the proportion equation
   2,931,678 : 4,484,707 = 4,484,707 : x
2. Step 2: Convert to fraction form
   2,931,678/4,484,707 = 4,484,707/x
3. Step 3: Cross multiply
   2,931,678x = 4,484,707 × 4,484,707
4. Step 4: Simplify right side
   2,931,678x = 20,112,596,875,849
5. Step 5: Solve for x
   x = 20,112,596,875,849/2,931,678
6. Step 6: Final answer
   x = 6,860,438.59