Finding the Third Proportional to 222,600 and 456,138

Step by Step Solution

1. Step 1: Write the proportion equation
   222,600 : 456,138 = 456,138 : x
2. Step 2: Convert to fraction form
   222,600/456,138 = 456,138/x
3. Step 3: Cross multiply
   222,600x = 456,138 × 456,138
4. Step 4: Simplify right side
   222,600x = 208,061,875,044
5. Step 5: Solve for x
   x = 208,061,875,044/222,600
6. Step 6: Final answer
   x = 934,689.47