Finding the Third Proportional to 149,319 and 231,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,319 : 231,538.50 = 231,538.50 : x
2. Step 2: Convert to fraction form
   149,319/231,538.50 = 231,538.50/x
3. Step 3: Cross multiply
   149,319x = 231,538.50 × 231,538.50
4. Step 4: Simplify right side
   149,319x = 53,610,076,982.25
5. Step 5: Solve for x
   x = 53,610,076,982.25/149,319
6. Step 6: Final answer
   x = 359,030.51