Finding the Third Proportional to 189,953 and 300,786

Step by Step Solution

1. Step 1: Write the proportion equation
   189,953 : 300,786 = 300,786 : x
2. Step 2: Convert to fraction form
   189,953/300,786 = 300,786/x
3. Step 3: Cross multiply
   189,953x = 300,786 × 300,786
4. Step 4: Simplify right side
   189,953x = 90,472,217,796
5. Step 5: Solve for x
   x = 90,472,217,796/189,953
6. Step 6: Final answer
   x = 476,287.39