Finding the Third Proportional to 64,383.19 and 139,851.56

Step by Step Solution

1. Step 1: Write the proportion equation
   64,383.19 : 139,851.56 = 139,851.56 : x
2. Step 2: Convert to fraction form
   64,383.19/139,851.56 = 139,851.56/x
3. Step 3: Cross multiply
   64,383.19x = 139,851.56 × 139,851.56
4. Step 4: Simplify right side
   64,383.19x = 19,558,459,533.69
5. Step 5: Solve for x
   x = 19,558,459,533.69/64,383.19
6. Step 6: Final answer
   x = 303,782.09