Finding the Third Proportional to 188,700 and 279,522

Step by Step Solution

1. Step 1: Write the proportion equation
   188,700 : 279,522 = 279,522 : x
2. Step 2: Convert to fraction form
   188,700/279,522 = 279,522/x
3. Step 3: Cross multiply
   188,700x = 279,522 × 279,522
4. Step 4: Simplify right side
   188,700x = 78,132,548,484
5. Step 5: Solve for x
   x = 78,132,548,484/188,700
6. Step 6: Final answer
   x = 414,056.96