Finding the Third Proportional to 84,699 and 123,864.75

Step by Step Solution

1. Step 1: Write the proportion equation
   84,699 : 123,864.75 = 123,864.75 : x
2. Step 2: Convert to fraction form
   84,699/123,864.75 = 123,864.75/x
3. Step 3: Cross multiply
   84,699x = 123,864.75 × 123,864.75
4. Step 4: Simplify right side
   84,699x = 15,342,476,292.56
5. Step 5: Solve for x
   x = 15,342,476,292.56/84,699
6. Step 6: Final answer
   x = 181,141.17