Finding the Third Proportional to 638,317.50 and 945,152.25

Step by Step Solution

1. Step 1: Write the proportion equation
   638,317.50 : 945,152.25 = 945,152.25 : x
2. Step 2: Convert to fraction form
   638,317.50/945,152.25 = 945,152.25/x
3. Step 3: Cross multiply
   638,317.50x = 945,152.25 × 945,152.25
4. Step 4: Simplify right side
   638,317.50x = 893,312,775,680.06
5. Step 5: Solve for x
   x = 893,312,775,680.06/638,317.50
6. Step 6: Final answer
   x = 1,399,480.31