Finding the Third Proportional to 442,842 and 917,179.50

Step by Step Solution

1. Step 1: Write the proportion equation
   442,842 : 917,179.50 = 917,179.50 : x
2. Step 2: Convert to fraction form
   442,842/917,179.50 = 917,179.50/x
3. Step 3: Cross multiply
   442,842x = 917,179.50 × 917,179.50
4. Step 4: Simplify right side
   442,842x = 841,218,235,220.25
5. Step 5: Solve for x
   x = 841,218,235,220.25/442,842
6. Step 6: Final answer
   x = 1,899,590.00