Finding the Third Proportional to 14,988.50 and 30,420.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,988.50 : 30,420.50 = 30,420.50 : x
2. Step 2: Convert to fraction form
   14,988.50/30,420.50 = 30,420.50/x
3. Step 3: Cross multiply
   14,988.50x = 30,420.50 × 30,420.50
4. Step 4: Simplify right side
   14,988.50x = 925,406,820.25
5. Step 5: Solve for x
   x = 925,406,820.25/14,988.50
6. Step 6: Final answer
   x = 61,741.12