Finding the Third Proportional to 6,331,536 and 12,886,648

Step by Step Solution

1. Step 1: Write the proportion equation
   6,331,536 : 12,886,648 = 12,886,648 : x
2. Step 2: Convert to fraction form
   6,331,536/12,886,648 = 12,886,648/x
3. Step 3: Cross multiply
   6,331,536x = 12,886,648 × 12,886,648
4. Step 4: Simplify right side
   6,331,536x = 166,065,696,675,904
5. Step 5: Solve for x
   x = 166,065,696,675,904/6,331,536
6. Step 6: Final answer
   x = 26,228,342.80