Finding the Third Proportional to 31,563 and 67,905

Step by Step Solution

1. Step 1: Write the proportion equation
   31,563 : 67,905 = 67,905 : x
2. Step 2: Convert to fraction form
   31,563/67,905 = 67,905/x
3. Step 3: Cross multiply
   31,563x = 67,905 × 67,905
4. Step 4: Simplify right side
   31,563x = 4,611,089,025
5. Step 5: Solve for x
   x = 4,611,089,025/31,563
6. Step 6: Final answer
   x = 146,091.60