Finding the Third Proportional to 373,280 and 578,940

Step by Step Solution

1. Step 1: Write the proportion equation
   373,280 : 578,940 = 578,940 : x
2. Step 2: Convert to fraction form
   373,280/578,940 = 578,940/x
3. Step 3: Cross multiply
   373,280x = 578,940 × 578,940
4. Step 4: Simplify right side
   373,280x = 335,171,523,600
5. Step 5: Solve for x
   x = 335,171,523,600/373,280
6. Step 6: Final answer
   x = 897,909.14