Finding the Third Proportional to 12,672,663,085 and 26,388,233,410

Step by Step Solution

1. Step 1: Write the proportion equation
   12,672,663,085 : 26,388,233,410 = 26,388,233,410 : x
2. Step 2: Convert to fraction form
   12,672,663,085/26,388,233,410 = 26,388,233,410/x
3. Step 3: Cross multiply
   12,672,663,085x = 26,388,233,410 × 26,388,233,410
4. Step 4: Simplify right side
   12,672,663,085x = 696,338,862,500,640,194,560
5. Step 5: Solve for x
   x = 696,338,862,500,640,194,560/12,672,663,085
6. Step 6: Final answer
   x = 54,948,108,209.78