Finding the Third Proportional to 35,870 and 55,317

Step by Step Solution

1. Step 1: Write the proportion equation
   35,870 : 55,317 = 55,317 : x
2. Step 2: Convert to fraction form
   35,870/55,317 = 55,317/x
3. Step 3: Cross multiply
   35,870x = 55,317 × 55,317
4. Step 4: Simplify right side
   35,870x = 3,059,970,489
5. Step 5: Solve for x
   x = 3,059,970,489/35,870
6. Step 6: Final answer
   x = 85,307.23