Finding the Third Proportional to 429,609 and 848,371.50

Step by Step Solution

1. Step 1: Write the proportion equation
   429,609 : 848,371.50 = 848,371.50 : x
2. Step 2: Convert to fraction form
   429,609/848,371.50 = 848,371.50/x
3. Step 3: Cross multiply
   429,609x = 848,371.50 × 848,371.50
4. Step 4: Simplify right side
   429,609x = 719,734,202,012.25
5. Step 5: Solve for x
   x = 719,734,202,012.25/429,609
6. Step 6: Final answer
   x = 1,675,323.85