Finding the Third Proportional to 675,222 and 1,069,209

Step by Step Solution

1. Step 1: Write the proportion equation
   675,222 : 1,069,209 = 1,069,209 : x
2. Step 2: Convert to fraction form
   675,222/1,069,209 = 1,069,209/x
3. Step 3: Cross multiply
   675,222x = 1,069,209 × 1,069,209
4. Step 4: Simplify right side
   675,222x = 1,143,207,885,681
5. Step 5: Solve for x
   x = 1,143,207,885,681/675,222
6. Step 6: Final answer
   x = 1,693,084.48