Finding the Third Proportional to 64,036 and 140,528

Step by Step Solution

1. Step 1: Write the proportion equation
   64,036 : 140,528 = 140,528 : x
2. Step 2: Convert to fraction form
   64,036/140,528 = 140,528/x
3. Step 3: Cross multiply
   64,036x = 140,528 × 140,528
4. Step 4: Simplify right side
   64,036x = 19,748,118,784
5. Step 5: Solve for x
   x = 19,748,118,784/64,036
6. Step 6: Final answer
   x = 308,390.89