Finding the Third Proportional to 1,369,916 and 2,181,716

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369,916 : 2,181,716 = 2,181,716 : x
2. Step 2: Convert to fraction form
   1,369,916/2,181,716 = 2,181,716/x
3. Step 3: Cross multiply
   1,369,916x = 2,181,716 × 2,181,716
4. Step 4: Simplify right side
   1,369,916x = 4,759,884,704,656
5. Step 5: Solve for x
   x = 4,759,884,704,656/1,369,916
6. Step 6: Final answer
   x = 3,474,581.44