Finding the Third Proportional to 12,691,496 and 19,065,380

Step by Step Solution

1. Step 1: Write the proportion equation
   12,691,496 : 19,065,380 = 19,065,380 : x
2. Step 2: Convert to fraction form
   12,691,496/19,065,380 = 19,065,380/x
3. Step 3: Cross multiply
   12,691,496x = 19,065,380 × 19,065,380
4. Step 4: Simplify right side
   12,691,496x = 363,488,714,544,400
5. Step 5: Solve for x
   x = 363,488,714,544,400/12,691,496
6. Step 6: Final answer
   x = 28,640,336.38