Finding the Third Proportional to 12,613,520 and 19,487,676

Step by Step Solution

1. Step 1: Write the proportion equation
   12,613,520 : 19,487,676 = 19,487,676 : x
2. Step 2: Convert to fraction form
   12,613,520/19,487,676 = 19,487,676/x
3. Step 3: Cross multiply
   12,613,520x = 19,487,676 × 19,487,676
4. Step 4: Simplify right side
   12,613,520x = 379,769,515,880,976
5. Step 5: Solve for x
   x = 379,769,515,880,976/12,613,520
6. Step 6: Final answer
   x = 30,108,131.27