Finding the Third Proportional to 395,943 and 637,492.50

Step by Step Solution

1. Step 1: Write the proportion equation
   395,943 : 637,492.50 = 637,492.50 : x
2. Step 2: Convert to fraction form
   395,943/637,492.50 = 637,492.50/x
3. Step 3: Cross multiply
   395,943x = 637,492.50 × 637,492.50
4. Step 4: Simplify right side
   395,943x = 406,396,687,556.25
5. Step 5: Solve for x
   x = 406,396,687,556.25/395,943
6. Step 6: Final answer
   x = 1,026,402.00