Finding the Third Proportional to 1,688,123 and 3,904,650

Step by Step Solution

1. Step 1: Write the proportion equation
   1,688,123 : 3,904,650 = 3,904,650 : x
2. Step 2: Convert to fraction form
   1,688,123/3,904,650 = 3,904,650/x
3. Step 3: Cross multiply
   1,688,123x = 3,904,650 × 3,904,650
4. Step 4: Simplify right side
   1,688,123x = 15,246,291,622,500
5. Step 5: Solve for x
   x = 15,246,291,622,500/1,688,123
6. Step 6: Final answer
   x = 9,031,505.18