Finding the Third Proportional to 395,561.25 and 612,117

Step by Step Solution

1. Step 1: Write the proportion equation
   395,561.25 : 612,117 = 612,117 : x
2. Step 2: Convert to fraction form
   395,561.25/612,117 = 612,117/x
3. Step 3: Cross multiply
   395,561.25x = 612,117 × 612,117
4. Step 4: Simplify right side
   395,561.25x = 374,687,221,689
5. Step 5: Solve for x
   x = 374,687,221,689/395,561.25
6. Step 6: Final answer
   x = 947,229.34