Finding the Third Proportional to 100,897 and 212,250

Step by Step Solution

1. Step 1: Write the proportion equation
   100,897 : 212,250 = 212,250 : x
2. Step 2: Convert to fraction form
   100,897/212,250 = 212,250/x
3. Step 3: Cross multiply
   100,897x = 212,250 × 212,250
4. Step 4: Simplify right side
   100,897x = 45,050,062,500
5. Step 5: Solve for x
   x = 45,050,062,500/100,897
6. Step 6: Final answer
   x = 446,495.56