Finding the Third Proportional to 2,147,220 and 4,680,243

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,220 : 4,680,243 = 4,680,243 : x
2. Step 2: Convert to fraction form
   2,147,220/4,680,243 = 4,680,243/x
3. Step 3: Cross multiply
   2,147,220x = 4,680,243 × 4,680,243
4. Step 4: Simplify right side
   2,147,220x = 21,904,674,539,049
5. Step 5: Solve for x
   x = 21,904,674,539,049/2,147,220
6. Step 6: Final answer
   x = 10,201,411.38