Finding the Third Proportional to 183,426 and 276,988.50

Step by Step Solution

1. Step 1: Write the proportion equation
   183,426 : 276,988.50 = 276,988.50 : x
2. Step 2: Convert to fraction form
   183,426/276,988.50 = 276,988.50/x
3. Step 3: Cross multiply
   183,426x = 276,988.50 × 276,988.50
4. Step 4: Simplify right side
   183,426x = 76,722,629,132.25
5. Step 5: Solve for x
   x = 76,722,629,132.25/183,426
6. Step 6: Final answer
   x = 418,275.65