Finding the Third Proportional to 29,431.50 and 64,116.94

Step by Step Solution

1. Step 1: Write the proportion equation
   29,431.50 : 64,116.94 = 64,116.94 : x
2. Step 2: Convert to fraction form
   29,431.50/64,116.94 = 64,116.94/x
3. Step 3: Cross multiply
   29,431.50x = 64,116.94 × 64,116.94
4. Step 4: Simplify right side
   29,431.50x = 4,110,981,674.38
5. Step 5: Solve for x
   x = 4,110,981,674.38/29,431.50
6. Step 6: Final answer
   x = 139,679.65