Finding the Third Proportional to 303,710 and 607,060

Step by Step Solution

1. Step 1: Write the proportion equation
   303,710 : 607,060 = 607,060 : x
2. Step 2: Convert to fraction form
   303,710/607,060 = 607,060/x
3. Step 3: Cross multiply
   303,710x = 607,060 × 607,060
4. Step 4: Simplify right side
   303,710x = 368,521,843,600
5. Step 5: Solve for x
   x = 368,521,843,600/303,710
6. Step 6: Final answer
   x = 1,213,400.43