Finding the Third Proportional to 1,314,688 and 1,878,720

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314,688 : 1,878,720 = 1,878,720 : x
2. Step 2: Convert to fraction form
   1,314,688/1,878,720 = 1,878,720/x
3. Step 3: Cross multiply
   1,314,688x = 1,878,720 × 1,878,720
4. Step 4: Simplify right side
   1,314,688x = 3,529,588,838,400
5. Step 5: Solve for x
   x = 3,529,588,838,400/1,314,688
6. Step 6: Final answer
   x = 2,684,734.96