Finding the Third Proportional to 64,402.59 and 139,527.56

Step by Step Solution

1. Step 1: Write the proportion equation
   64,402.59 : 139,527.56 = 139,527.56 : x
2. Step 2: Convert to fraction form
   64,402.59/139,527.56 = 139,527.56/x
3. Step 3: Cross multiply
   64,402.59x = 139,527.56 × 139,527.56
4. Step 4: Simplify right side
   64,402.59x = 19,467,940,697.19
5. Step 5: Solve for x
   x = 19,467,940,697.19/64,402.59
6. Step 6: Final answer
   x = 302,285.04