Finding the Third Proportional to 1,355,688 and 2,947,464

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355,688 : 2,947,464 = 2,947,464 : x
2. Step 2: Convert to fraction form
   1,355,688/2,947,464 = 2,947,464/x
3. Step 3: Cross multiply
   1,355,688x = 2,947,464 × 2,947,464
4. Step 4: Simplify right side
   1,355,688x = 8,687,544,031,296
5. Step 5: Solve for x
   x = 8,687,544,031,296/1,355,688
6. Step 6: Final answer
   x = 6,408,217.84