Finding the Third Proportional to 485,688 and 1,042,737

Step by Step Solution

1. Step 1: Write the proportion equation
   485,688 : 1,042,737 = 1,042,737 : x
2. Step 2: Convert to fraction form
   485,688/1,042,737 = 1,042,737/x
3. Step 3: Cross multiply
   485,688x = 1,042,737 × 1,042,737
4. Step 4: Simplify right side
   485,688x = 1,087,300,451,169
5. Step 5: Solve for x
   x = 1,087,300,451,169/485,688
6. Step 6: Final answer
   x = 2,238,680.90