Finding the Third Proportional to 442,791.50 and 917,092

Step by Step Solution

1. Step 1: Write the proportion equation
   442,791.50 : 917,092 = 917,092 : x
2. Step 2: Convert to fraction form
   442,791.50/917,092 = 917,092/x
3. Step 3: Cross multiply
   442,791.50x = 917,092 × 917,092
4. Step 4: Simplify right side
   442,791.50x = 841,057,736,464
5. Step 5: Solve for x
   x = 841,057,736,464/442,791.50
6. Step 6: Final answer
   x = 1,899,444.18