Finding the Third Proportional to 2,931,667 and 4,484,686.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,931,667 : 4,484,686.50 = 4,484,686.50 : x
2. Step 2: Convert to fraction form
   2,931,667/4,484,686.50 = 4,484,686.50/x
3. Step 3: Cross multiply
   2,931,667x = 4,484,686.50 × 4,484,686.50
4. Step 4: Simplify right side
   2,931,667x = 20,112,413,003,282.25
5. Step 5: Solve for x
   x = 20,112,413,003,282.25/2,931,667
6. Step 6: Final answer
   x = 6,860,401.61