Finding the Third Proportional to 131,415 and 201,064.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,415 : 201,064.50 = 201,064.50 : x
2. Step 2: Convert to fraction form
   131,415/201,064.50 = 201,064.50/x
3. Step 3: Cross multiply
   131,415x = 201,064.50 × 201,064.50
4. Step 4: Simplify right side
   131,415x = 40,426,933,160.25
5. Step 5: Solve for x
   x = 40,426,933,160.25/131,415
6. Step 6: Final answer
   x = 307,628.00