Finding the Third Proportional to 1,072,688 and 2,234,368

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072,688 : 2,234,368 = 2,234,368 : x
2. Step 2: Convert to fraction form
   1,072,688/2,234,368 = 2,234,368/x
3. Step 3: Cross multiply
   1,072,688x = 2,234,368 × 2,234,368
4. Step 4: Simplify right side
   1,072,688x = 4,992,400,359,424
5. Step 5: Solve for x
   x = 4,992,400,359,424/1,072,688
6. Step 6: Final answer
   x = 4,654,102.93