Finding the Third Proportional to 35,781.75 and 53,915.63

Step by Step Solution

1. Step 1: Write the proportion equation
   35,781.75 : 53,915.63 = 53,915.63 : x
2. Step 2: Convert to fraction form
   35,781.75/53,915.63 = 53,915.63/x
3. Step 3: Cross multiply
   35,781.75x = 53,915.63 × 53,915.63
4. Step 4: Simplify right side
   35,781.75x = 2,906,894,619.14
5. Step 5: Solve for x
   x = 2,906,894,619.14/35,781.75
6. Step 6: Final answer
   x = 81,239.59