Finding the Third Proportional to 442,785.50 and 917,077

Step by Step Solution

1. Step 1: Write the proportion equation
   442,785.50 : 917,077 = 917,077 : x
2. Step 2: Convert to fraction form
   442,785.50/917,077 = 917,077/x
3. Step 3: Cross multiply
   442,785.50x = 917,077 × 917,077
4. Step 4: Simplify right side
   442,785.50x = 841,030,223,929
5. Step 5: Solve for x
   x = 841,030,223,929/442,785.50
6. Step 6: Final answer
   x = 1,899,407.78