Finding the Third Proportional to 30,018.50 and 70,124.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,018.50 : 70,124.50 = 70,124.50 : x
2. Step 2: Convert to fraction form
   30,018.50/70,124.50 = 70,124.50/x
3. Step 3: Cross multiply
   30,018.50x = 70,124.50 × 70,124.50
4. Step 4: Simplify right side
   30,018.50x = 4,917,445,500.25
5. Step 5: Solve for x
   x = 4,917,445,500.25/30,018.50
6. Step 6: Final answer
   x = 163,813.83