Finding the Third Proportional to 30,018.50 and 69,487

Step by Step Solution

1. Step 1: Write the proportion equation
   30,018.50 : 69,487 = 69,487 : x
2. Step 2: Convert to fraction form
   30,018.50/69,487 = 69,487/x
3. Step 3: Cross multiply
   30,018.50x = 69,487 × 69,487
4. Step 4: Simplify right side
   30,018.50x = 4,828,443,169
5. Step 5: Solve for x
   x = 4,828,443,169/30,018.50
6. Step 6: Final answer
   x = 160,848.92