Finding the Third Proportional to 12,976,132 and 18,971,142

Step by Step Solution

1. Step 1: Write the proportion equation
   12,976,132 : 18,971,142 = 18,971,142 : x
2. Step 2: Convert to fraction form
   12,976,132/18,971,142 = 18,971,142/x
3. Step 3: Cross multiply
   12,976,132x = 18,971,142 × 18,971,142
4. Step 4: Simplify right side
   12,976,132x = 359,904,228,784,164
5. Step 5: Solve for x
   x = 359,904,228,784,164/12,976,132
6. Step 6: Final answer
   x = 27,735,863.72