Finding the Third Proportional to 686,947.50 and 1,488,303

Step by Step Solution

1. Step 1: Write the proportion equation
   686,947.50 : 1,488,303 = 1,488,303 : x
2. Step 2: Convert to fraction form
   686,947.50/1,488,303 = 1,488,303/x
3. Step 3: Cross multiply
   686,947.50x = 1,488,303 × 1,488,303
4. Step 4: Simplify right side
   686,947.50x = 2,215,045,819,809
5. Step 5: Solve for x
   x = 2,215,045,819,809/686,947.50
6. Step 6: Final answer
   x = 3,224,476.14