Finding the Third Proportional to 8,418,875 and 12,313,384

Step by Step Solution

1. Step 1: Write the proportion equation
   8,418,875 : 12,313,384 = 12,313,384 : x
2. Step 2: Convert to fraction form
   8,418,875/12,313,384 = 12,313,384/x
3. Step 3: Cross multiply
   8,418,875x = 12,313,384 × 12,313,384
4. Step 4: Simplify right side
   8,418,875x = 151,619,425,531,456
5. Step 5: Solve for x
   x = 151,619,425,531,456/8,418,875
6. Step 6: Final answer
   x = 18,009,463.92