Finding the Third Proportional to 69,150.50 and 140,837

Step by Step Solution

1. Step 1: Write the proportion equation
   69,150.50 : 140,837 = 140,837 : x
2. Step 2: Convert to fraction form
   69,150.50/140,837 = 140,837/x
3. Step 3: Cross multiply
   69,150.50x = 140,837 × 140,837
4. Step 4: Simplify right side
   69,150.50x = 19,835,060,569
5. Step 5: Solve for x
   x = 19,835,060,569/69,150.50
6. Step 6: Final answer
   x = 286,839.00