Finding the Third Proportional to 74,698 and 156,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,698 : 156,321.50 = 156,321.50 : x
2. Step 2: Convert to fraction form
   74,698/156,321.50 = 156,321.50/x
3. Step 3: Cross multiply
   74,698x = 156,321.50 × 156,321.50
4. Step 4: Simplify right side
   74,698x = 24,436,411,362.25
5. Step 5: Solve for x
   x = 24,436,411,362.25/74,698
6. Step 6: Final answer
   x = 327,136.09