Finding the Third Proportional to 30,318 and 42,100.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,318 : 42,100.50 = 42,100.50 : x
2. Step 2: Convert to fraction form
   30,318/42,100.50 = 42,100.50/x
3. Step 3: Cross multiply
   30,318x = 42,100.50 × 42,100.50
4. Step 4: Simplify right side
   30,318x = 1,772,452,100.25
5. Step 5: Solve for x
   x = 1,772,452,100.25/30,318
6. Step 6: Final answer
   x = 58,462.04