Finding the Third Proportional to 458,388 and 1,007,136

Step by Step Solution

1. Step 1: Write the proportion equation
   458,388 : 1,007,136 = 1,007,136 : x
2. Step 2: Convert to fraction form
   458,388/1,007,136 = 1,007,136/x
3. Step 3: Cross multiply
   458,388x = 1,007,136 × 1,007,136
4. Step 4: Simplify right side
   458,388x = 1,014,322,922,496
5. Step 5: Solve for x
   x = 1,014,322,922,496/458,388
6. Step 6: Final answer
   x = 2,212,804.27