Finding the Third Proportional to 99,647.50 and 148,051.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,647.50 : 148,051.50 = 148,051.50 : x
2. Step 2: Convert to fraction form
   99,647.50/148,051.50 = 148,051.50/x
3. Step 3: Cross multiply
   99,647.50x = 148,051.50 × 148,051.50
4. Step 4: Simplify right side
   99,647.50x = 21,919,246,652.25
5. Step 5: Solve for x
   x = 21,919,246,652.25/99,647.50
6. Step 6: Final answer
   x = 219,967.85