Finding the Third Proportional to 42,573.38 and 64,449.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,573.38 : 64,449.56 = 64,449.56 : x
2. Step 2: Convert to fraction form
   42,573.38/64,449.56 = 64,449.56/x
3. Step 3: Cross multiply
   42,573.38x = 64,449.56 × 64,449.56
4. Step 4: Simplify right side
   42,573.38x = 4,153,746,106.44
5. Step 5: Solve for x
   x = 4,153,746,106.44/42,573.38
6. Step 6: Final answer
   x = 97,566.76