Finding the Third Proportional to 5,715,646 and 12,328,688

Step by Step Solution

1. Step 1: Write the proportion equation
   5,715,646 : 12,328,688 = 12,328,688 : x
2. Step 2: Convert to fraction form
   5,715,646/12,328,688 = 12,328,688/x
3. Step 3: Cross multiply
   5,715,646x = 12,328,688 × 12,328,688
4. Step 4: Simplify right side
   5,715,646x = 151,996,547,801,344
5. Step 5: Solve for x
   x = 151,996,547,801,344/5,715,646
6. Step 6: Final answer
   x = 26,593,065.39