Finding the Third Proportional to 412,789.50 and 843,075

Step by Step Solution

1. Step 1: Write the proportion equation
   412,789.50 : 843,075 = 843,075 : x
2. Step 2: Convert to fraction form
   412,789.50/843,075 = 843,075/x
3. Step 3: Cross multiply
   412,789.50x = 843,075 × 843,075
4. Step 4: Simplify right side
   412,789.50x = 710,775,455,625
5. Step 5: Solve for x
   x = 710,775,455,625/412,789.50
6. Step 6: Final answer
   x = 1,721,883.56