Finding the Third Proportional to 442,788 and 917,082

Step by Step Solution

1. Step 1: Write the proportion equation
   442,788 : 917,082 = 917,082 : x
2. Step 2: Convert to fraction form
   442,788/917,082 = 917,082/x
3. Step 3: Cross multiply
   442,788x = 917,082 × 917,082
4. Step 4: Simplify right side
   442,788x = 841,039,394,724
5. Step 5: Solve for x
   x = 841,039,394,724/442,788
6. Step 6: Final answer
   x = 1,899,417.77