Finding the Third Proportional to 2,128,005 and 4,669,434

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,005 : 4,669,434 = 4,669,434 : x
2. Step 2: Convert to fraction form
   2,128,005/4,669,434 = 4,669,434/x
3. Step 3: Cross multiply
   2,128,005x = 4,669,434 × 4,669,434
4. Step 4: Simplify right side
   2,128,005x = 21,803,613,880,356
5. Step 5: Solve for x
   x = 21,803,613,880,356/2,128,005
6. Step 6: Final answer
   x = 10,246,035.08