Finding the Third Proportional to 69,483 and 141,419.25

Step by Step Solution

1. Step 1: Write the proportion equation
   69,483 : 141,419.25 = 141,419.25 : x
2. Step 2: Convert to fraction form
   69,483/141,419.25 = 141,419.25/x
3. Step 3: Cross multiply
   69,483x = 141,419.25 × 141,419.25
4. Step 4: Simplify right side
   69,483x = 19,999,404,270.56
5. Step 5: Solve for x
   x = 19,999,404,270.56/69,483
6. Step 6: Final answer
   x = 287,831.62