Finding the Third Proportional to 30,845.81 and 69,670.76

Step by Step Solution

1. Step 1: Write the proportion equation
   30,845.81 : 69,670.76 = 69,670.76 : x
2. Step 2: Convert to fraction form
   30,845.81/69,670.76 = 69,670.76/x
3. Step 3: Cross multiply
   30,845.81x = 69,670.76 × 69,670.76
4. Step 4: Simplify right side
   30,845.81x = 4,854,014,494.17
5. Step 5: Solve for x
   x = 4,854,014,494.17/30,845.81
6. Step 6: Final answer
   x = 157,363.81