Finding the Third Proportional to 118,368 and 254,779.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,368 : 254,779.50 = 254,779.50 : x
2. Step 2: Convert to fraction form
   118,368/254,779.50 = 254,779.50/x
3. Step 3: Cross multiply
   118,368x = 254,779.50 × 254,779.50
4. Step 4: Simplify right side
   118,368x = 64,912,593,620.25
5. Step 5: Solve for x
   x = 64,912,593,620.25/118,368
6. Step 6: Final answer
   x = 548,396.47