Finding the Third Proportional to 1,072,628 and 2,118,184

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072,628 : 2,118,184 = 2,118,184 : x
2. Step 2: Convert to fraction form
   1,072,628/2,118,184 = 2,118,184/x
3. Step 3: Cross multiply
   1,072,628x = 2,118,184 × 2,118,184
4. Step 4: Simplify right side
   1,072,628x = 4,486,703,457,856
5. Step 5: Solve for x
   x = 4,486,703,457,856/1,072,628
6. Step 6: Final answer
   x = 4,182,907.27