Finding the Third Proportional to 686,196 and 1,512,000

Step by Step Solution

1. Step 1: Write the proportion equation
   686,196 : 1,512,000 = 1,512,000 : x
2. Step 2: Convert to fraction form
   686,196/1,512,000 = 1,512,000/x
3. Step 3: Cross multiply
   686,196x = 1,512,000 × 1,512,000
4. Step 4: Simplify right side
   686,196x = 2,286,144,000,000
5. Step 5: Solve for x
   x = 2,286,144,000,000/686,196
6. Step 6: Final answer
   x = 3,331,619.54