Finding the Third Proportional to 766,164 and 1,212,588

Step by Step Solution

1. Step 1: Write the proportion equation
   766,164 : 1,212,588 = 1,212,588 : x
2. Step 2: Convert to fraction form
   766,164/1,212,588 = 1,212,588/x
3. Step 3: Cross multiply
   766,164x = 1,212,588 × 1,212,588
4. Step 4: Simplify right side
   766,164x = 1,470,369,657,744
5. Step 5: Solve for x
   x = 1,470,369,657,744/766,164
6. Step 6: Final answer
   x = 1,919,131.75