Finding the Third Proportional to 1,243,316 and 1,889,276

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,316 : 1,889,276 = 1,889,276 : x
2. Step 2: Convert to fraction form
   1,243,316/1,889,276 = 1,889,276/x
3. Step 3: Cross multiply
   1,243,316x = 1,889,276 × 1,889,276
4. Step 4: Simplify right side
   1,243,316x = 3,569,363,804,176
5. Step 5: Solve for x
   x = 3,569,363,804,176/1,243,316
6. Step 6: Final answer
   x = 2,870,842.01