Finding the Third Proportional to 404,167.50 and 623,101.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,167.50 : 623,101.50 = 623,101.50 : x
2. Step 2: Convert to fraction form
   404,167.50/623,101.50 = 623,101.50/x
3. Step 3: Cross multiply
   404,167.50x = 623,101.50 × 623,101.50
4. Step 4: Simplify right side
   404,167.50x = 388,255,479,302.25
5. Step 5: Solve for x
   x = 388,255,479,302.25/404,167.50
6. Step 6: Final answer
   x = 960,630.13