Finding the Third Proportional to 243,194 and 363,819.50

Step by Step Solution

1. Step 1: Write the proportion equation
   243,194 : 363,819.50 = 363,819.50 : x
2. Step 2: Convert to fraction form
   243,194/363,819.50 = 363,819.50/x
3. Step 3: Cross multiply
   243,194x = 363,819.50 × 363,819.50
4. Step 4: Simplify right side
   243,194x = 132,364,628,580.25
5. Step 5: Solve for x
   x = 132,364,628,580.25/243,194
6. Step 6: Final answer
   x = 544,275.88