Finding the Third Proportional to 168,621 and 254,044.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168,621 : 254,044.50 = 254,044.50 : x
2. Step 2: Convert to fraction form
   168,621/254,044.50 = 254,044.50/x
3. Step 3: Cross multiply
   168,621x = 254,044.50 × 254,044.50
4. Step 4: Simplify right side
   168,621x = 64,538,607,980.25
5. Step 5: Solve for x
   x = 64,538,607,980.25/168,621
6. Step 6: Final answer
   x = 382,743.60