Finding the Third Proportional to 100,799 and 148,899.50

Step by Step Solution

1. Step 1: Write the proportion equation
   100,799 : 148,899.50 = 148,899.50 : x
2. Step 2: Convert to fraction form
   100,799/148,899.50 = 148,899.50/x
3. Step 3: Cross multiply
   100,799x = 148,899.50 × 148,899.50
4. Step 4: Simplify right side
   100,799x = 22,171,061,100.25
5. Step 5: Solve for x
   x = 22,171,061,100.25/100,799
6. Step 6: Final answer
   x = 219,953.19