Finding the Third Proportional to 339,987.50 and 460,055.50

Step by Step Solution

1. Step 1: Write the proportion equation
   339,987.50 : 460,055.50 = 460,055.50 : x
2. Step 2: Convert to fraction form
   339,987.50/460,055.50 = 460,055.50/x
3. Step 3: Cross multiply
   339,987.50x = 460,055.50 × 460,055.50
4. Step 4: Simplify right side
   339,987.50x = 211,651,063,080.25
5. Step 5: Solve for x
   x = 211,651,063,080.25/339,987.50
6. Step 6: Final answer
   x = 622,526.01