Finding the Third Proportional to 64,326 and 139,384.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,326 : 139,384.50 = 139,384.50 : x
2. Step 2: Convert to fraction form
   64,326/139,384.50 = 139,384.50/x
3. Step 3: Cross multiply
   64,326x = 139,384.50 × 139,384.50
4. Step 4: Simplify right side
   64,326x = 19,428,038,840.25
5. Step 5: Solve for x
   x = 19,428,038,840.25/64,326
6. Step 6: Final answer
   x = 302,024.67