Finding the Third Proportional to 1,190,988 and 2,591,910

Step by Step Solution

1. Step 1: Write the proportion equation
   1,190,988 : 2,591,910 = 2,591,910 : x
2. Step 2: Convert to fraction form
   1,190,988/2,591,910 = 2,591,910/x
3. Step 3: Cross multiply
   1,190,988x = 2,591,910 × 2,591,910
4. Step 4: Simplify right side
   1,190,988x = 6,717,997,448,100
5. Step 5: Solve for x
   x = 6,717,997,448,100/1,190,988
6. Step 6: Final answer
   x = 5,640,692.81