Finding the Third Proportional to 210,005 and 493,640.50

Step by Step Solution

1. Step 1: Write the proportion equation
   210,005 : 493,640.50 = 493,640.50 : x
2. Step 2: Convert to fraction form
   210,005/493,640.50 = 493,640.50/x
3. Step 3: Cross multiply
   210,005x = 493,640.50 × 493,640.50
4. Step 4: Simplify right side
   210,005x = 243,680,943,240.25
5. Step 5: Solve for x
   x = 243,680,943,240.25/210,005
6. Step 6: Final answer
   x = 1,160,357.82