Finding the Third Proportional to 9,906,300 and 13,688,268

Step by Step Solution

1. Step 1: Write the proportion equation
   9,906,300 : 13,688,268 = 13,688,268 : x
2. Step 2: Convert to fraction form
   9,906,300/13,688,268 = 13,688,268/x
3. Step 3: Cross multiply
   9,906,300x = 13,688,268 × 13,688,268
4. Step 4: Simplify right side
   9,906,300x = 187,368,680,839,824
5. Step 5: Solve for x
   x = 187,368,680,839,824/9,906,300
6. Step 6: Final answer
   x = 18,914,093.14