Finding the Third Proportional to 31,425 and 68,898

Step by Step Solution

1. Step 1: Write the proportion equation
   31,425 : 68,898 = 68,898 : x
2. Step 2: Convert to fraction form
   31,425/68,898 = 68,898/x
3. Step 3: Cross multiply
   31,425x = 68,898 × 68,898
4. Step 4: Simplify right side
   31,425x = 4,746,934,404
5. Step 5: Solve for x
   x = 4,746,934,404/31,425
6. Step 6: Final answer
   x = 151,055.99