Finding the Third Proportional to 931,812 and 1,985,640

Step by Step Solution

1. Step 1: Write the proportion equation
   931,812 : 1,985,640 = 1,985,640 : x
2. Step 2: Convert to fraction form
   931,812/1,985,640 = 1,985,640/x
3. Step 3: Cross multiply
   931,812x = 1,985,640 × 1,985,640
4. Step 4: Simplify right side
   931,812x = 3,942,766,209,600
5. Step 5: Solve for x
   x = 3,942,766,209,600/931,812
6. Step 6: Final answer
   x = 4,231,289.37