Finding the Third Proportional to 68,391 and 147,001.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,391 : 147,001.50 = 147,001.50 : x
2. Step 2: Convert to fraction form
   68,391/147,001.50 = 147,001.50/x
3. Step 3: Cross multiply
   68,391x = 147,001.50 × 147,001.50
4. Step 4: Simplify right side
   68,391x = 21,609,441,002.25
5. Step 5: Solve for x
   x = 21,609,441,002.25/68,391
6. Step 6: Final answer
   x = 315,969.07