Finding the Third Proportional to 1,558,440 and 2,331,387

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558,440 : 2,331,387 = 2,331,387 : x
2. Step 2: Convert to fraction form
   1,558,440/2,331,387 = 2,331,387/x
3. Step 3: Cross multiply
   1,558,440x = 2,331,387 × 2,331,387
4. Step 4: Simplify right side
   1,558,440x = 5,435,365,343,769
5. Step 5: Solve for x
   x = 5,435,365,343,769/1,558,440
6. Step 6: Final answer
   x = 3,487,696.25