Finding the Third Proportional to 149,910 and 230,653.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,910 : 230,653.50 = 230,653.50 : x
2. Step 2: Convert to fraction form
   149,910/230,653.50 = 230,653.50/x
3. Step 3: Cross multiply
   149,910x = 230,653.50 × 230,653.50
4. Step 4: Simplify right side
   149,910x = 53,201,037,062.25
5. Step 5: Solve for x
   x = 53,201,037,062.25/149,910
6. Step 6: Final answer
   x = 354,886.51