Finding the Third Proportional to 195,670 and 279,061

Step by Step Solution

1. Step 1: Write the proportion equation
   195,670 : 279,061 = 279,061 : x
2. Step 2: Convert to fraction form
   195,670/279,061 = 279,061/x
3. Step 3: Cross multiply
   195,670x = 279,061 × 279,061
4. Step 4: Simplify right side
   195,670x = 77,875,041,721
5. Step 5: Solve for x
   x = 77,875,041,721/195,670
6. Step 6: Final answer
   x = 397,991.73