Finding the Third Proportional to 60,699 and 123,805.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,699 : 123,805.50 = 123,805.50 : x
2. Step 2: Convert to fraction form
   60,699/123,805.50 = 123,805.50/x
3. Step 3: Cross multiply
   60,699x = 123,805.50 × 123,805.50
4. Step 4: Simplify right side
   60,699x = 15,327,801,830.25
5. Step 5: Solve for x
   x = 15,327,801,830.25/60,699
6. Step 6: Final answer
   x = 252,521.49