Finding the Third Proportional to 201,222.50 and 426,426.50

Step by Step Solution

1. Step 1: Write the proportion equation
   201,222.50 : 426,426.50 = 426,426.50 : x
2. Step 2: Convert to fraction form
   201,222.50/426,426.50 = 426,426.50/x
3. Step 3: Cross multiply
   201,222.50x = 426,426.50 × 426,426.50
4. Step 4: Simplify right side
   201,222.50x = 181,839,559,902.25
5. Step 5: Solve for x
   x = 181,839,559,902.25/201,222.50
6. Step 6: Final answer
   x = 903,674.09