Finding the Third Proportional to 12,925,436 and 19,138,590

Step by Step Solution

1. Step 1: Write the proportion equation
   12,925,436 : 19,138,590 = 19,138,590 : x
2. Step 2: Convert to fraction form
   12,925,436/19,138,590 = 19,138,590/x
3. Step 3: Cross multiply
   12,925,436x = 19,138,590 × 19,138,590
4. Step 4: Simplify right side
   12,925,436x = 366,285,627,188,100
5. Step 5: Solve for x
   x = 366,285,627,188,100/12,925,436
6. Step 6: Final answer
   x = 28,338,357.58