Finding the Third Proportional to 30,890 and 67,794.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,890 : 67,794.25 = 67,794.25 : x
2. Step 2: Convert to fraction form
   30,890/67,794.25 = 67,794.25/x
3. Step 3: Cross multiply
   30,890x = 67,794.25 × 67,794.25
4. Step 4: Simplify right side
   30,890x = 4,596,060,333.06
5. Step 5: Solve for x
   x = 4,596,060,333.06/30,890
6. Step 6: Final answer
   x = 148,787.97