Finding the Third Proportional to 369,148 and 789,484

Step by Step Solution

1. Step 1: Write the proportion equation
   369,148 : 789,484 = 789,484 : x
2. Step 2: Convert to fraction form
   369,148/789,484 = 789,484/x
3. Step 3: Cross multiply
   369,148x = 789,484 × 789,484
4. Step 4: Simplify right side
   369,148x = 623,284,986,256
5. Step 5: Solve for x
   x = 623,284,986,256/369,148
6. Step 6: Final answer
   x = 1,688,442.00