Finding the Third Proportional to 1,281,188 and 2,720,406

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281,188 : 2,720,406 = 2,720,406 : x
2. Step 2: Convert to fraction form
   1,281,188/2,720,406 = 2,720,406/x
3. Step 3: Cross multiply
   1,281,188x = 2,720,406 × 2,720,406
4. Step 4: Simplify right side
   1,281,188x = 7,400,608,804,836
5. Step 5: Solve for x
   x = 7,400,608,804,836/1,281,188
6. Step 6: Final answer
   x = 5,776,364.44