Finding the Third Proportional to 742,144 and 1,111,276

Step by Step Solution

1. Step 1: Write the proportion equation
   742,144 : 1,111,276 = 1,111,276 : x
2. Step 2: Convert to fraction form
   742,144/1,111,276 = 1,111,276/x
3. Step 3: Cross multiply
   742,144x = 1,111,276 × 1,111,276
4. Step 4: Simplify right side
   742,144x = 1,234,934,348,176
5. Step 5: Solve for x
   x = 1,234,934,348,176/742,144
6. Step 6: Final answer
   x = 1,664,009.07