Finding the Third Proportional to 752,912 and 1,131,039

Step by Step Solution

1. Step 1: Write the proportion equation
   752,912 : 1,131,039 = 1,131,039 : x
2. Step 2: Convert to fraction form
   752,912/1,131,039 = 1,131,039/x
3. Step 3: Cross multiply
   752,912x = 1,131,039 × 1,131,039
4. Step 4: Simplify right side
   752,912x = 1,279,249,219,521
5. Step 5: Solve for x
   x = 1,279,249,219,521/752,912
6. Step 6: Final answer
   x = 1,699,068.71