Finding the Third Proportional to 272,664 and 558,895.50

Step by Step Solution

1. Step 1: Write the proportion equation
   272,664 : 558,895.50 = 558,895.50 : x
2. Step 2: Convert to fraction form
   272,664/558,895.50 = 558,895.50/x
3. Step 3: Cross multiply
   272,664x = 558,895.50 × 558,895.50
4. Step 4: Simplify right side
   272,664x = 312,364,179,920.25
5. Step 5: Solve for x
   x = 312,364,179,920.25/272,664
6. Step 6: Final answer
   x = 1,145,601.11