Finding the Third Proportional to 742,989 and 1,147,968

Step by Step Solution

1. Step 1: Write the proportion equation
   742,989 : 1,147,968 = 1,147,968 : x
2. Step 2: Convert to fraction form
   742,989/1,147,968 = 1,147,968/x
3. Step 3: Cross multiply
   742,989x = 1,147,968 × 1,147,968
4. Step 4: Simplify right side
   742,989x = 1,317,830,529,024
5. Step 5: Solve for x
   x = 1,317,830,529,024/742,989
6. Step 6: Final answer
   x = 1,773,687.81