Finding the Third Proportional to 1,931,808 and 4,222,608

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931,808 : 4,222,608 = 4,222,608 : x
2. Step 2: Convert to fraction form
   1,931,808/4,222,608 = 4,222,608/x
3. Step 3: Cross multiply
   1,931,808x = 4,222,608 × 4,222,608
4. Step 4: Simplify right side
   1,931,808x = 17,830,418,321,664
5. Step 5: Solve for x
   x = 17,830,418,321,664/1,931,808
6. Step 6: Final answer
   x = 9,229,912.25