Finding the Third Proportional to 2,219,080 and 4,779,980

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219,080 : 4,779,980 = 4,779,980 : x
2. Step 2: Convert to fraction form
   2,219,080/4,779,980 = 4,779,980/x
3. Step 3: Cross multiply
   2,219,080x = 4,779,980 × 4,779,980
4. Step 4: Simplify right side
   2,219,080x = 22,848,208,800,400
5. Step 5: Solve for x
   x = 22,848,208,800,400/2,219,080
6. Step 6: Final answer
   x = 10,296,252.86