Finding the Third Proportional to 99,636 and 148,042.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,636 : 148,042.50 = 148,042.50 : x
2. Step 2: Convert to fraction form
   99,636/148,042.50 = 148,042.50/x
3. Step 3: Cross multiply
   99,636x = 148,042.50 × 148,042.50
4. Step 4: Simplify right side
   99,636x = 21,916,581,806.25
5. Step 5: Solve for x
   x = 21,916,581,806.25/99,636
6. Step 6: Final answer
   x = 219,966.50