Finding the Third Proportional to 123,570 and 188,817

Step by Step Solution

1. Step 1: Write the proportion equation
   123,570 : 188,817 = 188,817 : x
2. Step 2: Convert to fraction form
   123,570/188,817 = 188,817/x
3. Step 3: Cross multiply
   123,570x = 188,817 × 188,817
4. Step 4: Simplify right side
   123,570x = 35,651,859,489
5. Step 5: Solve for x
   x = 35,651,859,489/123,570
6. Step 6: Final answer
   x = 288,515.49