Finding the Third Proportional to 123,572 and 188,820

Step by Step Solution

1. Step 1: Write the proportion equation
   123,572 : 188,820 = 188,820 : x
2. Step 2: Convert to fraction form
   123,572/188,820 = 188,820/x
3. Step 3: Cross multiply
   123,572x = 188,820 × 188,820
4. Step 4: Simplify right side
   123,572x = 35,652,992,400
5. Step 5: Solve for x
   x = 35,652,992,400/123,572
6. Step 6: Final answer
   x = 288,519.99