Finding the Third Proportional to 151,479 and 212,395.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,479 : 212,395.50 = 212,395.50 : x
2. Step 2: Convert to fraction form
   151,479/212,395.50 = 212,395.50/x
3. Step 3: Cross multiply
   151,479x = 212,395.50 × 212,395.50
4. Step 4: Simplify right side
   151,479x = 45,111,848,420.25
5. Step 5: Solve for x
   x = 45,111,848,420.25/151,479
6. Step 6: Final answer
   x = 297,809.26