Finding the Third Proportional to 88,222 and 208,229

Step by Step Solution

1. Step 1: Write the proportion equation
   88,222 : 208,229 = 208,229 : x
2. Step 2: Convert to fraction form
   88,222/208,229 = 208,229/x
3. Step 3: Cross multiply
   88,222x = 208,229 × 208,229
4. Step 4: Simplify right side
   88,222x = 43,359,316,441
5. Step 5: Solve for x
   x = 43,359,316,441/88,222
6. Step 6: Final answer
   x = 491,479.64