Finding the Third Proportional to 2,210,721 and 4,886,130

Step by Step Solution

1. Step 1: Write the proportion equation
   2,210,721 : 4,886,130 = 4,886,130 : x
2. Step 2: Convert to fraction form
   2,210,721/4,886,130 = 4,886,130/x
3. Step 3: Cross multiply
   2,210,721x = 4,886,130 × 4,886,130
4. Step 4: Simplify right side
   2,210,721x = 23,874,266,376,900
5. Step 5: Solve for x
   x = 23,874,266,376,900/2,210,721
6. Step 6: Final answer
   x = 10,799,312.25