Finding the Third Proportional to 30,557.50 and 63,905

Step by Step Solution

1. Step 1: Write the proportion equation
   30,557.50 : 63,905 = 63,905 : x
2. Step 2: Convert to fraction form
   30,557.50/63,905 = 63,905/x
3. Step 3: Cross multiply
   30,557.50x = 63,905 × 63,905
4. Step 4: Simplify right side
   30,557.50x = 4,083,849,025
5. Step 5: Solve for x
   x = 4,083,849,025/30,557.50
6. Step 6: Final answer
   x = 133,644.74