Finding the Third Proportional to 4,386,370 and 9,781,308

Step by Step Solution

1. Step 1: Write the proportion equation
   4,386,370 : 9,781,308 = 9,781,308 : x
2. Step 2: Convert to fraction form
   4,386,370/9,781,308 = 9,781,308/x
3. Step 3: Cross multiply
   4,386,370x = 9,781,308 × 9,781,308
4. Step 4: Simplify right side
   4,386,370x = 95,673,986,190,864
5. Step 5: Solve for x
   x = 95,673,986,190,864/4,386,370
6. Step 6: Final answer
   x = 21,811,654.33