Finding the Third Proportional to 2,173,878 and 4,721,733

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173,878 : 4,721,733 = 4,721,733 : x
2. Step 2: Convert to fraction form
   2,173,878/4,721,733 = 4,721,733/x
3. Step 3: Cross multiply
   2,173,878x = 4,721,733 × 4,721,733
4. Step 4: Simplify right side
   2,173,878x = 22,294,762,523,289
5. Step 5: Solve for x
   x = 22,294,762,523,289/2,173,878
6. Step 6: Final answer
   x = 10,255,756.08