Finding the Third Proportional to 1,018,972 and 2,159,316

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,972 : 2,159,316 = 2,159,316 : x
2. Step 2: Convert to fraction form
   1,018,972/2,159,316 = 2,159,316/x
3. Step 3: Cross multiply
   1,018,972x = 2,159,316 × 2,159,316
4. Step 4: Simplify right side
   1,018,972x = 4,662,645,587,856
5. Step 5: Solve for x
   x = 4,662,645,587,856/1,018,972
6. Step 6: Final answer
   x = 4,575,832.89