Finding the Third Proportional to 30,906.56 and 67,475.53

Step by Step Solution

1. Step 1: Write the proportion equation
   30,906.56 : 67,475.53 = 67,475.53 : x
2. Step 2: Convert to fraction form
   30,906.56/67,475.53 = 67,475.53/x
3. Step 3: Cross multiply
   30,906.56x = 67,475.53 × 67,475.53
4. Step 4: Simplify right side
   30,906.56x = 4,552,947,317.47
5. Step 5: Solve for x
   x = 4,552,947,317.47/30,906.56
6. Step 6: Final answer
   x = 147,313.29