Finding the Third Proportional to 442,811.50 and 917,132

Step by Step Solution

1. Step 1: Write the proportion equation
   442,811.50 : 917,132 = 917,132 : x
2. Step 2: Convert to fraction form
   442,811.50/917,132 = 917,132/x
3. Step 3: Cross multiply
   442,811.50x = 917,132 × 917,132
4. Step 4: Simplify right side
   442,811.50x = 841,131,105,424
5. Step 5: Solve for x
   x = 841,131,105,424/442,811.50
6. Step 6: Final answer
   x = 1,899,524.08