Finding the Third Proportional to 12,257,680 and 19,750,388

Step by Step Solution

1. Step 1: Write the proportion equation
   12,257,680 : 19,750,388 = 19,750,388 : x
2. Step 2: Convert to fraction form
   12,257,680/19,750,388 = 19,750,388/x
3. Step 3: Cross multiply
   12,257,680x = 19,750,388 × 19,750,388
4. Step 4: Simplify right side
   12,257,680x = 390,077,826,150,544
5. Step 5: Solve for x
   x = 390,077,826,150,544/12,257,680
6. Step 6: Final answer
   x = 31,823,136.69