Finding the Third Proportional to 6,864,648 and 9,312,516

Step by Step Solution

1. Step 1: Write the proportion equation
   6,864,648 : 9,312,516 = 9,312,516 : x
2. Step 2: Convert to fraction form
   6,864,648/9,312,516 = 9,312,516/x
3. Step 3: Cross multiply
   6,864,648x = 9,312,516 × 9,312,516
4. Step 4: Simplify right side
   6,864,648x = 86,722,954,250,256
5. Step 5: Solve for x
   x = 86,722,954,250,256/6,864,648
6. Step 6: Final answer
   x = 12,633,270.38