Finding the Third Proportional to 692,672 and 1,036,221

Step by Step Solution

1. Step 1: Write the proportion equation
   692,672 : 1,036,221 = 1,036,221 : x
2. Step 2: Convert to fraction form
   692,672/1,036,221 = 1,036,221/x
3. Step 3: Cross multiply
   692,672x = 1,036,221 × 1,036,221
4. Step 4: Simplify right side
   692,672x = 1,073,753,960,841
5. Step 5: Solve for x
   x = 1,073,753,960,841/692,672
6. Step 6: Final answer
   x = 1,550,162.21