Finding the Third Proportional to 1,807,400 and 3,912,346

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807,400 : 3,912,346 = 3,912,346 : x
2. Step 2: Convert to fraction form
   1,807,400/3,912,346 = 3,912,346/x
3. Step 3: Cross multiply
   1,807,400x = 3,912,346 × 3,912,346
4. Step 4: Simplify right side
   1,807,400x = 15,306,451,223,716
5. Step 5: Solve for x
   x = 15,306,451,223,716/1,807,400
6. Step 6: Final answer
   x = 8,468,767.97