Finding the Third Proportional to 686,973 and 1,488,300

Step by Step Solution

1. Step 1: Write the proportion equation
   686,973 : 1,488,300 = 1,488,300 : x
2. Step 2: Convert to fraction form
   686,973/1,488,300 = 1,488,300/x
3. Step 3: Cross multiply
   686,973x = 1,488,300 × 1,488,300
4. Step 4: Simplify right side
   686,973x = 2,215,036,890,000
5. Step 5: Solve for x
   x = 2,215,036,890,000/686,973
6. Step 6: Final answer
   x = 3,224,343.45