Finding the Third Proportional to 680,402 and 1,491,700

Step by Step Solution

1. Step 1: Write the proportion equation
   680,402 : 1,491,700 = 1,491,700 : x
2. Step 2: Convert to fraction form
   680,402/1,491,700 = 1,491,700/x
3. Step 3: Cross multiply
   680,402x = 1,491,700 × 1,491,700
4. Step 4: Simplify right side
   680,402x = 2,225,168,890,000
5. Step 5: Solve for x
   x = 2,225,168,890,000/680,402
6. Step 6: Final answer
   x = 3,270,373.82