Finding the Third Proportional to 157,619 and 342,030

Step by Step Solution

1. Step 1: Write the proportion equation
   157,619 : 342,030 = 342,030 : x
2. Step 2: Convert to fraction form
   157,619/342,030 = 342,030/x
3. Step 3: Cross multiply
   157,619x = 342,030 × 342,030
4. Step 4: Simplify right side
   157,619x = 116,984,520,900
5. Step 5: Solve for x
   x = 116,984,520,900/157,619
6. Step 6: Final answer
   x = 742,198.09