Finding the Third Proportional to 253,894.50 and 542,781

Step by Step Solution

1. Step 1: Write the proportion equation
   253,894.50 : 542,781 = 542,781 : x
2. Step 2: Convert to fraction form
   253,894.50/542,781 = 542,781/x
3. Step 3: Cross multiply
   253,894.50x = 542,781 × 542,781
4. Step 4: Simplify right side
   253,894.50x = 294,611,213,961
5. Step 5: Solve for x
   x = 294,611,213,961/253,894.50
6. Step 6: Final answer
   x = 1,160,368.63