Finding the Third Proportional to 7,777,896 and 12,173,436

Step by Step Solution

1. Step 1: Write the proportion equation
   7,777,896 : 12,173,436 = 12,173,436 : x
2. Step 2: Convert to fraction form
   7,777,896/12,173,436 = 12,173,436/x
3. Step 3: Cross multiply
   7,777,896x = 12,173,436 × 12,173,436
4. Step 4: Simplify right side
   7,777,896x = 148,192,544,046,096
5. Step 5: Solve for x
   x = 148,192,544,046,096/7,777,896
6. Step 6: Final answer
   x = 19,053,037.49