Finding the Third Proportional to 111,194 and 243,154

Step by Step Solution

1. Step 1: Write the proportion equation
   111,194 : 243,154 = 243,154 : x
2. Step 2: Convert to fraction form
   111,194/243,154 = 243,154/x
3. Step 3: Cross multiply
   111,194x = 243,154 × 243,154
4. Step 4: Simplify right side
   111,194x = 59,123,867,716
5. Step 5: Solve for x
   x = 59,123,867,716/111,194
6. Step 6: Final answer
   x = 531,718.15