Finding the Third Proportional to 985,264 and 2,117,870

Step by Step Solution

1. Step 1: Write the proportion equation
   985,264 : 2,117,870 = 2,117,870 : x
2. Step 2: Convert to fraction form
   985,264/2,117,870 = 2,117,870/x
3. Step 3: Cross multiply
   985,264x = 2,117,870 × 2,117,870
4. Step 4: Simplify right side
   985,264x = 4,485,373,336,900
5. Step 5: Solve for x
   x = 4,485,373,336,900/985,264
6. Step 6: Final answer
   x = 4,552,458.36