Finding the Third Proportional to 147,342 and 321,670.50

Step by Step Solution

1. Step 1: Write the proportion equation
   147,342 : 321,670.50 = 321,670.50 : x
2. Step 2: Convert to fraction form
   147,342/321,670.50 = 321,670.50/x
3. Step 3: Cross multiply
   147,342x = 321,670.50 × 321,670.50
4. Step 4: Simplify right side
   147,342x = 103,471,910,570.25
5. Step 5: Solve for x
   x = 103,471,910,570.25/147,342
6. Step 6: Final answer
   x = 702,256.73