Finding the Third Proportional to 84,276 and 123,300

Step by Step Solution

1. Step 1: Write the proportion equation
   84,276 : 123,300 = 123,300 : x
2. Step 2: Convert to fraction form
   84,276/123,300 = 123,300/x
3. Step 3: Cross multiply
   84,276x = 123,300 × 123,300
4. Step 4: Simplify right side
   84,276x = 15,202,890,000
5. Step 5: Solve for x
   x = 15,202,890,000/84,276
6. Step 6: Final answer
   x = 180,394.06