Finding the Third Proportional to 253,281 and 401,062.50

Step by Step Solution

1. Step 1: Write the proportion equation
   253,281 : 401,062.50 = 401,062.50 : x
2. Step 2: Convert to fraction form
   253,281/401,062.50 = 401,062.50/x
3. Step 3: Cross multiply
   253,281x = 401,062.50 × 401,062.50
4. Step 4: Simplify right side
   253,281x = 160,851,128,906.25
5. Step 5: Solve for x
   x = 160,851,128,906.25/253,281
6. Step 6: Final answer
   x = 635,069.86