Finding the Third Proportional to 148,318 and 307,150.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,318 : 307,150.50 = 307,150.50 : x
2. Step 2: Convert to fraction form
   148,318/307,150.50 = 307,150.50/x
3. Step 3: Cross multiply
   148,318x = 307,150.50 × 307,150.50
4. Step 4: Simplify right side
   148,318x = 94,341,429,650.25
5. Step 5: Solve for x
   x = 94,341,429,650.25/148,318
6. Step 6: Final answer
   x = 636,075.39