Finding the Third Proportional to 155,360 and 331,056

Step by Step Solution

1. Step 1: Write the proportion equation
   155,360 : 331,056 = 331,056 : x
2. Step 2: Convert to fraction form
   155,360/331,056 = 331,056/x
3. Step 3: Cross multiply
   155,360x = 331,056 × 331,056
4. Step 4: Simplify right side
   155,360x = 109,598,075,136
5. Step 5: Solve for x
   x = 109,598,075,136/155,360
6. Step 6: Final answer
   x = 705,445.90