Finding the Third Proportional to 557,007 and 812,038.50

Step by Step Solution

1. Step 1: Write the proportion equation
   557,007 : 812,038.50 = 812,038.50 : x
2. Step 2: Convert to fraction form
   557,007/812,038.50 = 812,038.50/x
3. Step 3: Cross multiply
   557,007x = 812,038.50 × 812,038.50
4. Step 4: Simplify right side
   557,007x = 659,406,525,482.25
5. Step 5: Solve for x
   x = 659,406,525,482.25/557,007
6. Step 6: Final answer
   x = 1,183,838.85