Finding the Third Proportional to 12,538,636 and 19,132,250

Step by Step Solution

1. Step 1: Write the proportion equation
   12,538,636 : 19,132,250 = 19,132,250 : x
2. Step 2: Convert to fraction form
   12,538,636/19,132,250 = 19,132,250/x
3. Step 3: Cross multiply
   12,538,636x = 19,132,250 × 19,132,250
4. Step 4: Simplify right side
   12,538,636x = 366,042,990,062,500
5. Step 5: Solve for x
   x = 366,042,990,062,500/12,538,636
6. Step 6: Final answer
   x = 29,193,206.51