Finding the Third Proportional to 688,076 and 1,508,992

Step by Step Solution

1. Step 1: Write the proportion equation
   688,076 : 1,508,992 = 1,508,992 : x
2. Step 2: Convert to fraction form
   688,076/1,508,992 = 1,508,992/x
3. Step 3: Cross multiply
   688,076x = 1,508,992 × 1,508,992
4. Step 4: Simplify right side
   688,076x = 2,277,056,856,064
5. Step 5: Solve for x
   x = 2,277,056,856,064/688,076
6. Step 6: Final answer
   x = 3,309,310.10