Finding the Third Proportional to 99,645 and 148,048.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,645 : 148,048.50 = 148,048.50 : x
2. Step 2: Convert to fraction form
   99,645/148,048.50 = 148,048.50/x
3. Step 3: Cross multiply
   99,645x = 148,048.50 × 148,048.50
4. Step 4: Simplify right side
   99,645x = 21,918,358,352.25
5. Step 5: Solve for x
   x = 21,918,358,352.25/99,645
6. Step 6: Final answer
   x = 219,964.46