Finding the Third Proportional to 442,804.50 and 917,118

Step by Step Solution

1. Step 1: Write the proportion equation
   442,804.50 : 917,118 = 917,118 : x
2. Step 2: Convert to fraction form
   442,804.50/917,118 = 917,118/x
3. Step 3: Cross multiply
   442,804.50x = 917,118 × 917,118
4. Step 4: Simplify right side
   442,804.50x = 841,105,425,924
5. Step 5: Solve for x
   x = 841,105,425,924/442,804.50
6. Step 6: Final answer
   x = 1,899,496.11