Finding the Third Proportional to 148,108 and 211,647.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,108 : 211,647.50 = 211,647.50 : x
2. Step 2: Convert to fraction form
   148,108/211,647.50 = 211,647.50/x
3. Step 3: Cross multiply
   148,108x = 211,647.50 × 211,647.50
4. Step 4: Simplify right side
   148,108x = 44,794,664,256.25
5. Step 5: Solve for x
   x = 44,794,664,256.25/148,108
6. Step 6: Final answer
   x = 302,445.95