Finding the Third Proportional to 345,293 and 714,562

Step by Step Solution

1. Step 1: Write the proportion equation
   345,293 : 714,562 = 714,562 : x
2. Step 2: Convert to fraction form
   345,293/714,562 = 714,562/x
3. Step 3: Cross multiply
   345,293x = 714,562 × 714,562
4. Step 4: Simplify right side
   345,293x = 510,598,851,844
5. Step 5: Solve for x
   x = 510,598,851,844/345,293
6. Step 6: Final answer
   x = 1,478,740.81