Finding the Third Proportional to 428,542 and 914,037.50

Step by Step Solution

1. Step 1: Write the proportion equation
   428,542 : 914,037.50 = 914,037.50 : x
2. Step 2: Convert to fraction form
   428,542/914,037.50 = 914,037.50/x
3. Step 3: Cross multiply
   428,542x = 914,037.50 × 914,037.50
4. Step 4: Simplify right side
   428,542x = 835,464,551,406.25
5. Step 5: Solve for x
   x = 835,464,551,406.25/428,542
6. Step 6: Final answer
   x = 1,949,551.16