Finding the Third Proportional to 148,109.50 and 211,648.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,109.50 : 211,648.50 = 211,648.50 : x
2. Step 2: Convert to fraction form
   148,109.50/211,648.50 = 211,648.50/x
3. Step 3: Cross multiply
   148,109.50x = 211,648.50 × 211,648.50
4. Step 4: Simplify right side
   148,109.50x = 44,795,087,552.25
5. Step 5: Solve for x
   x = 44,795,087,552.25/148,109.50
6. Step 6: Final answer
   x = 302,445.74