Finding the Third Proportional to 99,688 and 148,091

Step by Step Solution

1. Step 1: Write the proportion equation
   99,688 : 148,091 = 148,091 : x
2. Step 2: Convert to fraction form
   99,688/148,091 = 148,091/x
3. Step 3: Cross multiply
   99,688x = 148,091 × 148,091
4. Step 4: Simplify right side
   99,688x = 21,930,944,281
5. Step 5: Solve for x
   x = 21,930,944,281/99,688
6. Step 6: Final answer
   x = 219,995.83