Finding the Third Proportional to 8,771,981 and 13,157,972

Step by Step Solution

1. Step 1: Write the proportion equation
   8,771,981 : 13,157,972 = 13,157,972 : x
2. Step 2: Convert to fraction form
   8,771,981/13,157,972 = 13,157,972/x
3. Step 3: Cross multiply
   8,771,981x = 13,157,972 × 13,157,972
4. Step 4: Simplify right side
   8,771,981x = 173,132,227,152,784
5. Step 5: Solve for x
   x = 173,132,227,152,784/8,771,981
6. Step 6: Final answer
   x = 19,736,958.75