Finding the Third Proportional to 2,143,726 and 4,598,280

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,726 : 4,598,280 = 4,598,280 : x
2. Step 2: Convert to fraction form
   2,143,726/4,598,280 = 4,598,280/x
3. Step 3: Cross multiply
   2,143,726x = 4,598,280 × 4,598,280
4. Step 4: Simplify right side
   2,143,726x = 21,144,178,958,400
5. Step 5: Solve for x
   x = 21,144,178,958,400/2,143,726
6. Step 6: Final answer
   x = 9,863,284.28