Finding the Third Proportional to 10,638,661.50 and 16,848,648

Step by Step Solution

1. Step 1: Write the proportion equation
   10,638,661.50 : 16,848,648 = 16,848,648 : x
2. Step 2: Convert to fraction form
   10,638,661.50/16,848,648 = 16,848,648/x
3. Step 3: Cross multiply
   10,638,661.50x = 16,848,648 × 16,848,648
4. Step 4: Simplify right side
   10,638,661.50x = 283,876,939,427,904
5. Step 5: Solve for x
   x = 283,876,939,427,904/10,638,661.50
6. Step 6: Final answer
   x = 26,683,520.24