Finding the Third Proportional to 191,829 and 300,915

Step by Step Solution

1. Step 1: Write the proportion equation
   191,829 : 300,915 = 300,915 : x
2. Step 2: Convert to fraction form
   191,829/300,915 = 300,915/x
3. Step 3: Cross multiply
   191,829x = 300,915 × 300,915
4. Step 4: Simplify right side
   191,829x = 90,549,837,225
5. Step 5: Solve for x
   x = 90,549,837,225/191,829
6. Step 6: Final answer
   x = 472,034.14