Finding the Third Proportional to 119,970 and 257,395.50

Step by Step Solution

1. Step 1: Write the proportion equation
   119,970 : 257,395.50 = 257,395.50 : x
2. Step 2: Convert to fraction form
   119,970/257,395.50 = 257,395.50/x
3. Step 3: Cross multiply
   119,970x = 257,395.50 × 257,395.50
4. Step 4: Simplify right side
   119,970x = 66,252,443,420.25
5. Step 5: Solve for x
   x = 66,252,443,420.25/119,970
6. Step 6: Final answer
   x = 552,241.76