Finding the Third Proportional to 29,538.42 and 64,816.45

Step by Step Solution

1. Step 1: Write the proportion equation
   29,538.42 : 64,816.45 = 64,816.45 : x
2. Step 2: Convert to fraction form
   29,538.42/64,816.45 = 64,816.45/x
3. Step 3: Cross multiply
   29,538.42x = 64,816.45 × 64,816.45
4. Step 4: Simplify right side
   29,538.42x = 4,201,172,595.71
5. Step 5: Solve for x
   x = 4,201,172,595.71/29,538.42
6. Step 6: Final answer
   x = 142,227.39