Finding the Third Proportional to 4,386,380 and 9,781,314

Step by Step Solution

1. Step 1: Write the proportion equation
   4,386,380 : 9,781,314 = 9,781,314 : x
2. Step 2: Convert to fraction form
   4,386,380/9,781,314 = 9,781,314/x
3. Step 3: Cross multiply
   4,386,380x = 9,781,314 × 9,781,314
4. Step 4: Simplify right side
   4,386,380x = 95,674,103,566,596
5. Step 5: Solve for x
   x = 95,674,103,566,596/4,386,380
6. Step 6: Final answer
   x = 21,811,631.36