Finding the Third Proportional to 2,171,880 and 2,856,060

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,880 : 2,856,060 = 2,856,060 : x
2. Step 2: Convert to fraction form
   2,171,880/2,856,060 = 2,856,060/x
3. Step 3: Cross multiply
   2,171,880x = 2,856,060 × 2,856,060
4. Step 4: Simplify right side
   2,171,880x = 8,157,078,723,600
5. Step 5: Solve for x
   x = 8,157,078,723,600/2,171,880
6. Step 6: Final answer
   x = 3,755,768.61