Finding the Third Proportional to 259,745 and 351,985.50

Step by Step Solution

1. Step 1: Write the proportion equation
   259,745 : 351,985.50 = 351,985.50 : x
2. Step 2: Convert to fraction form
   259,745/351,985.50 = 351,985.50/x
3. Step 3: Cross multiply
   259,745x = 351,985.50 × 351,985.50
4. Step 4: Simplify right side
   259,745x = 123,893,792,210.25
5. Step 5: Solve for x
   x = 123,893,792,210.25/259,745
6. Step 6: Final answer
   x = 476,982.40