Finding the Third Proportional to 345,494.25 and 747,580.50

Step by Step Solution

1. Step 1: Write the proportion equation
   345,494.25 : 747,580.50 = 747,580.50 : x
2. Step 2: Convert to fraction form
   345,494.25/747,580.50 = 747,580.50/x
3. Step 3: Cross multiply
   345,494.25x = 747,580.50 × 747,580.50
4. Step 4: Simplify right side
   345,494.25x = 558,876,603,980.25
5. Step 5: Solve for x
   x = 558,876,603,980.25/345,494.25
6. Step 6: Final answer
   x = 1,617,614.78