Finding the Third Proportional to 662,840 and 1,036,912

Step by Step Solution

1. Step 1: Write the proportion equation
   662,840 : 1,036,912 = 1,036,912 : x
2. Step 2: Convert to fraction form
   662,840/1,036,912 = 1,036,912/x
3. Step 3: Cross multiply
   662,840x = 1,036,912 × 1,036,912
4. Step 4: Simplify right side
   662,840x = 1,075,186,495,744
5. Step 5: Solve for x
   x = 1,075,186,495,744/662,840
6. Step 6: Final answer
   x = 1,622,090.54