Finding the Third Proportional to 150,002.50 and 316,866

Step by Step Solution

1. Step 1: Write the proportion equation
   150,002.50 : 316,866 = 316,866 : x
2. Step 2: Convert to fraction form
   150,002.50/316,866 = 316,866/x
3. Step 3: Cross multiply
   150,002.50x = 316,866 × 316,866
4. Step 4: Simplify right side
   150,002.50x = 100,404,061,956
5. Step 5: Solve for x
   x = 100,404,061,956/150,002.50
6. Step 6: Final answer
   x = 669,349.26