Finding the Third Proportional to 1,122,064 and 1,578,264

Step by Step Solution

1. Step 1: Write the proportion equation
   1,122,064 : 1,578,264 = 1,578,264 : x
2. Step 2: Convert to fraction form
   1,122,064/1,578,264 = 1,578,264/x
3. Step 3: Cross multiply
   1,122,064x = 1,578,264 × 1,578,264
4. Step 4: Simplify right side
   1,122,064x = 2,490,917,253,696
5. Step 5: Solve for x
   x = 2,490,917,253,696/1,122,064
6. Step 6: Final answer
   x = 2,219,942.23