Finding the Third Proportional to 155,765 and 243,064

Step by Step Solution

1. Step 1: Write the proportion equation
   155,765 : 243,064 = 243,064 : x
2. Step 2: Convert to fraction form
   155,765/243,064 = 243,064/x
3. Step 3: Cross multiply
   155,765x = 243,064 × 243,064
4. Step 4: Simplify right side
   155,765x = 59,080,108,096
5. Step 5: Solve for x
   x = 59,080,108,096/155,765
6. Step 6: Final answer
   x = 379,290.01