Finding the Third Proportional to 625,688 and 1,375,788

Step by Step Solution

1. Step 1: Write the proportion equation
   625,688 : 1,375,788 = 1,375,788 : x
2. Step 2: Convert to fraction form
   625,688/1,375,788 = 1,375,788/x
3. Step 3: Cross multiply
   625,688x = 1,375,788 × 1,375,788
4. Step 4: Simplify right side
   625,688x = 1,892,792,620,944
5. Step 5: Solve for x
   x = 1,892,792,620,944/625,688
6. Step 6: Final answer
   x = 3,025,138.12