Finding the Third Proportional to 4,112,385 and 8,910,516

Step by Step Solution

1. Step 1: Write the proportion equation
   4,112,385 : 8,910,516 = 8,910,516 : x
2. Step 2: Convert to fraction form
   4,112,385/8,910,516 = 8,910,516/x
3. Step 3: Cross multiply
   4,112,385x = 8,910,516 × 8,910,516
4. Step 4: Simplify right side
   4,112,385x = 79,397,295,386,256
5. Step 5: Solve for x
   x = 79,397,295,386,256/4,112,385
6. Step 6: Final answer
   x = 19,306,873.11