Finding the Third Proportional to 35,874 and 78,300

Step by Step Solution

1. Step 1: Write the proportion equation
   35,874 : 78,300 = 78,300 : x
2. Step 2: Convert to fraction form
   35,874/78,300 = 78,300/x
3. Step 3: Cross multiply
   35,874x = 78,300 × 78,300
4. Step 4: Simplify right side
   35,874x = 6,130,890,000
5. Step 5: Solve for x
   x = 6,130,890,000/35,874
6. Step 6: Final answer
   x = 170,900.65