Finding the Third Proportional to 503,110 and 747,818

Step by Step Solution

1. Step 1: Write the proportion equation
   503,110 : 747,818 = 747,818 : x
2. Step 2: Convert to fraction form
   503,110/747,818 = 747,818/x
3. Step 3: Cross multiply
   503,110x = 747,818 × 747,818
4. Step 4: Simplify right side
   503,110x = 559,231,761,124
5. Step 5: Solve for x
   x = 559,231,761,124/503,110
6. Step 6: Final answer
   x = 1,111,549.68