Finding the Third Proportional to 191,485 and 409,034

Step by Step Solution

1. Step 1: Write the proportion equation
   191,485 : 409,034 = 409,034 : x
2. Step 2: Convert to fraction form
   191,485/409,034 = 409,034/x
3. Step 3: Cross multiply
   191,485x = 409,034 × 409,034
4. Step 4: Simplify right side
   191,485x = 167,308,813,156
5. Step 5: Solve for x
   x = 167,308,813,156/191,485
6. Step 6: Final answer
   x = 873,743.70