Finding the Third Proportional to 386,666.16 and 849,501.42

Step by Step Solution

1. Step 1: Write the proportion equation
   386,666.16 : 849,501.42 = 849,501.42 : x
2. Step 2: Convert to fraction form
   386,666.16/849,501.42 = 849,501.42/x
3. Step 3: Cross multiply
   386,666.16x = 849,501.42 × 849,501.42
4. Step 4: Simplify right side
   386,666.16x = 721,652,665,767.65
5. Step 5: Solve for x
   x = 721,652,665,767.65/386,666.16
6. Step 6: Final answer
   x = 1,866,345.56