Finding the Third Proportional to 139,344 and 296,664

Step by Step Solution

1. Step 1: Write the proportion equation
   139,344 : 296,664 = 296,664 : x
2. Step 2: Convert to fraction form
   139,344/296,664 = 296,664/x
3. Step 3: Cross multiply
   139,344x = 296,664 × 296,664
4. Step 4: Simplify right side
   139,344x = 88,009,528,896
5. Step 5: Solve for x
   x = 88,009,528,896/139,344
6. Step 6: Final answer
   x = 631,598.98