Finding the Third Proportional to 403,958.50 and 626,352

Step by Step Solution

1. Step 1: Write the proportion equation
   403,958.50 : 626,352 = 626,352 : x
2. Step 2: Convert to fraction form
   403,958.50/626,352 = 626,352/x
3. Step 3: Cross multiply
   403,958.50x = 626,352 × 626,352
4. Step 4: Simplify right side
   403,958.50x = 392,316,827,904
5. Step 5: Solve for x
   x = 392,316,827,904/403,958.50
6. Step 6: Final answer
   x = 971,181.02