Finding the Third Proportional to 69,346 and 141,980

Step by Step Solution

1. Step 1: Write the proportion equation
   69,346 : 141,980 = 141,980 : x
2. Step 2: Convert to fraction form
   69,346/141,980 = 141,980/x
3. Step 3: Cross multiply
   69,346x = 141,980 × 141,980
4. Step 4: Simplify right side
   69,346x = 20,158,320,400
5. Step 5: Solve for x
   x = 20,158,320,400/69,346
6. Step 6: Final answer
   x = 290,691.90