Finding the Third Proportional to 2,219,171 and 4,781,155

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219,171 : 4,781,155 = 4,781,155 : x
2. Step 2: Convert to fraction form
   2,219,171/4,781,155 = 4,781,155/x
3. Step 3: Cross multiply
   2,219,171x = 4,781,155 × 4,781,155
4. Step 4: Simplify right side
   2,219,171x = 22,859,443,134,025
5. Step 5: Solve for x
   x = 22,859,443,134,025/2,219,171
6. Step 6: Final answer
   x = 10,300,893.05