Finding the Third Proportional to 668,395 and 1,005,788

Step by Step Solution

1. Step 1: Write the proportion equation
   668,395 : 1,005,788 = 1,005,788 : x
2. Step 2: Convert to fraction form
   668,395/1,005,788 = 1,005,788/x
3. Step 3: Cross multiply
   668,395x = 1,005,788 × 1,005,788
4. Step 4: Simplify right side
   668,395x = 1,011,609,500,944
5. Step 5: Solve for x
   x = 1,011,609,500,944/668,395
6. Step 6: Final answer
   x = 1,513,490.53