Finding the Third Proportional to 150,300 and 312,997.50

Step by Step Solution

1. Step 1: Write the proportion equation
   150,300 : 312,997.50 = 312,997.50 : x
2. Step 2: Convert to fraction form
   150,300/312,997.50 = 312,997.50/x
3. Step 3: Cross multiply
   150,300x = 312,997.50 × 312,997.50
4. Step 4: Simplify right side
   150,300x = 97,967,435,006.25
5. Step 5: Solve for x
   x = 97,967,435,006.25/150,300
6. Step 6: Final answer
   x = 651,812.61