Finding the Third Proportional to 1,921,644 and 2,947,590

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921,644 : 2,947,590 = 2,947,590 : x
2. Step 2: Convert to fraction form
   1,921,644/2,947,590 = 2,947,590/x
3. Step 3: Cross multiply
   1,921,644x = 2,947,590 × 2,947,590
4. Step 4: Simplify right side
   1,921,644x = 8,688,286,808,100
5. Step 5: Solve for x
   x = 8,688,286,808,100/1,921,644
6. Step 6: Final answer
   x = 4,521,278.03