Finding the Third Proportional to 643,302 and 943,458.75

Step by Step Solution

1. Step 1: Write the proportion equation
   643,302 : 943,458.75 = 943,458.75 : x
2. Step 2: Convert to fraction form
   643,302/943,458.75 = 943,458.75/x
3. Step 3: Cross multiply
   643,302x = 943,458.75 × 943,458.75
4. Step 4: Simplify right side
   643,302x = 890,114,412,951.56
5. Step 5: Solve for x
   x = 890,114,412,951.56/643,302
6. Step 6: Final answer
   x = 1,383,664.92