Finding the Third Proportional to 3,953,918 and 8,632,946

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953,918 : 8,632,946 = 8,632,946 : x
2. Step 2: Convert to fraction form
   3,953,918/8,632,946 = 8,632,946/x
3. Step 3: Cross multiply
   3,953,918x = 8,632,946 × 8,632,946
4. Step 4: Simplify right side
   3,953,918x = 74,527,756,638,916
5. Step 5: Solve for x
   x = 74,527,756,638,916/3,953,918
6. Step 6: Final answer
   x = 18,849,090.10