Finding the Third Proportional to 397,145.53 and 607,507.59

Step by Step Solution

1. Step 1: Write the proportion equation
   397,145.53 : 607,507.59 = 607,507.59 : x
2. Step 2: Convert to fraction form
   397,145.53/607,507.59 = 607,507.59/x
3. Step 3: Cross multiply
   397,145.53x = 607,507.59 × 607,507.59
4. Step 4: Simplify right side
   397,145.53x = 369,065,476,463.92
5. Step 5: Solve for x
   x = 369,065,476,463.92/397,145.53
6. Step 6: Final answer
   x = 929,295.30