Finding the Third Proportional to 1,586,688 and 3,487,872

Step by Step Solution

1. Step 1: Write the proportion equation
   1,586,688 : 3,487,872 = 3,487,872 : x
2. Step 2: Convert to fraction form
   1,586,688/3,487,872 = 3,487,872/x
3. Step 3: Cross multiply
   1,586,688x = 3,487,872 × 3,487,872
4. Step 4: Simplify right side
   1,586,688x = 12,165,251,088,384
5. Step 5: Solve for x
   x = 12,165,251,088,384/1,586,688
6. Step 6: Final answer
   x = 7,667,071.97