Finding the Third Proportional to 3,476,812 and 5,378,940

Step by Step Solution

1. Step 1: Write the proportion equation
   3,476,812 : 5,378,940 = 5,378,940 : x
2. Step 2: Convert to fraction form
   3,476,812/5,378,940 = 5,378,940/x
3. Step 3: Cross multiply
   3,476,812x = 5,378,940 × 5,378,940
4. Step 4: Simplify right side
   3,476,812x = 28,932,995,523,600
5. Step 5: Solve for x
   x = 28,932,995,523,600/3,476,812
6. Step 6: Final answer
   x = 8,321,702.62