Finding the Third Proportional to 1,807,404 and 3,912,354

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807,404 : 3,912,354 = 3,912,354 : x
2. Step 2: Convert to fraction form
   1,807,404/3,912,354 = 3,912,354/x
3. Step 3: Cross multiply
   1,807,404x = 3,912,354 × 3,912,354
4. Step 4: Simplify right side
   1,807,404x = 15,306,513,821,316
5. Step 5: Solve for x
   x = 15,306,513,821,316/1,807,404
6. Step 6: Final answer
   x = 8,468,783.86