Finding the Third Proportional to 597,886 and 907,900

Step by Step Solution

1. Step 1: Write the proportion equation
   597,886 : 907,900 = 907,900 : x
2. Step 2: Convert to fraction form
   597,886/907,900 = 907,900/x
3. Step 3: Cross multiply
   597,886x = 907,900 × 907,900
4. Step 4: Simplify right side
   597,886x = 824,282,410,000
5. Step 5: Solve for x
   x = 824,282,410,000/597,886
6. Step 6: Final answer
   x = 1,378,661.50