Finding the Third Proportional to 179,764.31 and 390,085.88

Step by Step Solution

1. Step 1: Write the proportion equation
   179,764.31 : 390,085.88 = 390,085.88 : x
2. Step 2: Convert to fraction form
   179,764.31/390,085.88 = 390,085.88/x
3. Step 3: Cross multiply
   179,764.31x = 390,085.88 × 390,085.88
4. Step 4: Simplify right side
   179,764.31x = 152,166,989,874.52
5. Step 5: Solve for x
   x = 152,166,989,874.52/179,764.31
6. Step 6: Final answer
   x = 846,480.53