Finding the Third Proportional to 191,743 and 300,129

Step by Step Solution

1. Step 1: Write the proportion equation
   191,743 : 300,129 = 300,129 : x
2. Step 2: Convert to fraction form
   191,743/300,129 = 300,129/x
3. Step 3: Cross multiply
   191,743x = 300,129 × 300,129
4. Step 4: Simplify right side
   191,743x = 90,077,416,641
5. Step 5: Solve for x
   x = 90,077,416,641/191,743
6. Step 6: Final answer
   x = 469,782.03