Finding the Third Proportional to 8,431,344 and 18,141,516

Step by Step Solution

1. Step 1: Write the proportion equation
   8,431,344 : 18,141,516 = 18,141,516 : x
2. Step 2: Convert to fraction form
   8,431,344/18,141,516 = 18,141,516/x
3. Step 3: Cross multiply
   8,431,344x = 18,141,516 × 18,141,516
4. Step 4: Simplify right side
   8,431,344x = 329,114,602,778,256
5. Step 5: Solve for x
   x = 329,114,602,778,256/8,431,344
6. Step 6: Final answer
   x = 39,034,654.83