Finding the Third Proportional to 2,171,478 and 4,771,248

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,478 : 4,771,248 = 4,771,248 : x
2. Step 2: Convert to fraction form
   2,171,478/4,771,248 = 4,771,248/x
3. Step 3: Cross multiply
   2,171,478x = 4,771,248 × 4,771,248
4. Step 4: Simplify right side
   2,171,478x = 22,764,807,477,504
5. Step 5: Solve for x
   x = 22,764,807,477,504/2,171,478
6. Step 6: Final answer
   x = 10,483,554.28