Finding the Third Proportional to 191,864 and 300,319

Step by Step Solution

1. Step 1: Write the proportion equation
   191,864 : 300,319 = 300,319 : x
2. Step 2: Convert to fraction form
   191,864/300,319 = 300,319/x
3. Step 3: Cross multiply
   191,864x = 300,319 × 300,319
4. Step 4: Simplify right side
   191,864x = 90,191,501,761
5. Step 5: Solve for x
   x = 90,191,501,761/191,864
6. Step 6: Final answer
   x = 470,080.38