Finding the Third Proportional to 1,191,288 and 2,548,784

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191,288 : 2,548,784 = 2,548,784 : x
2. Step 2: Convert to fraction form
   1,191,288/2,548,784 = 2,548,784/x
3. Step 3: Cross multiply
   1,191,288x = 2,548,784 × 2,548,784
4. Step 4: Simplify right side
   1,191,288x = 6,496,299,878,656
5. Step 5: Solve for x
   x = 6,496,299,878,656/1,191,288
6. Step 6: Final answer
   x = 5,453,173.27