Finding the Third Proportional to 18,342 and 30,347.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,342 : 30,347.50 = 30,347.50 : x
2. Step 2: Convert to fraction form
   18,342/30,347.50 = 30,347.50/x
3. Step 3: Cross multiply
   18,342x = 30,347.50 × 30,347.50
4. Step 4: Simplify right side
   18,342x = 920,970,756.25
5. Step 5: Solve for x
   x = 920,970,756.25/18,342
6. Step 6: Final answer
   x = 50,211.03