Finding the Third Proportional to 1,038,663 and 1,643,274

Step by Step Solution

1. Step 1: Write the proportion equation
   1,038,663 : 1,643,274 = 1,643,274 : x
2. Step 2: Convert to fraction form
   1,038,663/1,643,274 = 1,643,274/x
3. Step 3: Cross multiply
   1,038,663x = 1,643,274 × 1,643,274
4. Step 4: Simplify right side
   1,038,663x = 2,700,349,439,076
5. Step 5: Solve for x
   x = 2,700,349,439,076/1,038,663
6. Step 6: Final answer
   x = 2,599,832.13