Finding the Third Proportional to 1,728,688 and 2,616,892

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728,688 : 2,616,892 = 2,616,892 : x
2. Step 2: Convert to fraction form
   1,728,688/2,616,892 = 2,616,892/x
3. Step 3: Cross multiply
   1,728,688x = 2,616,892 × 2,616,892
4. Step 4: Simplify right side
   1,728,688x = 6,848,123,739,664
5. Step 5: Solve for x
   x = 6,848,123,739,664/1,728,688
6. Step 6: Final answer
   x = 3,961,457.32