Finding the Third Proportional to 340,726.50 and 716,715

Step by Step Solution

1. Step 1: Write the proportion equation
   340,726.50 : 716,715 = 716,715 : x
2. Step 2: Convert to fraction form
   340,726.50/716,715 = 716,715/x
3. Step 3: Cross multiply
   340,726.50x = 716,715 × 716,715
4. Step 4: Simplify right side
   340,726.50x = 513,680,391,225
5. Step 5: Solve for x
   x = 513,680,391,225/340,726.50
6. Step 6: Final answer
   x = 1,507,603.29