Finding the Third Proportional to 189,963 and 300,798

Step by Step Solution

1. Step 1: Write the proportion equation
   189,963 : 300,798 = 300,798 : x
2. Step 2: Convert to fraction form
   189,963/300,798 = 300,798/x
3. Step 3: Cross multiply
   189,963x = 300,798 × 300,798
4. Step 4: Simplify right side
   189,963x = 90,479,436,804
5. Step 5: Solve for x
   x = 90,479,436,804/189,963
6. Step 6: Final answer
   x = 476,300.32