Finding the Third Proportional to 911,176 and 1,402,440

Step by Step Solution

1. Step 1: Write the proportion equation
   911,176 : 1,402,440 = 1,402,440 : x
2. Step 2: Convert to fraction form
   911,176/1,402,440 = 1,402,440/x
3. Step 3: Cross multiply
   911,176x = 1,402,440 × 1,402,440
4. Step 4: Simplify right side
   911,176x = 1,966,837,953,600
5. Step 5: Solve for x
   x = 1,966,837,953,600/911,176
6. Step 6: Final answer
   x = 2,158,570.85