Finding the Third Proportional to 278,069.25 and 607,107

Step by Step Solution

1. Step 1: Write the proportion equation
   278,069.25 : 607,107 = 607,107 : x
2. Step 2: Convert to fraction form
   278,069.25/607,107 = 607,107/x
3. Step 3: Cross multiply
   278,069.25x = 607,107 × 607,107
4. Step 4: Simplify right side
   278,069.25x = 368,578,909,449
5. Step 5: Solve for x
   x = 368,578,909,449/278,069.25
6. Step 6: Final answer
   x = 1,325,493.23