Finding the Third Proportional to 1,299,680 and 2,898,190

Step by Step Solution

1. Step 1: Write the proportion equation
   1,299,680 : 2,898,190 = 2,898,190 : x
2. Step 2: Convert to fraction form
   1,299,680/2,898,190 = 2,898,190/x
3. Step 3: Cross multiply
   1,299,680x = 2,898,190 × 2,898,190
4. Step 4: Simplify right side
   1,299,680x = 8,399,505,276,100
5. Step 5: Solve for x
   x = 8,399,505,276,100/1,299,680
6. Step 6: Final answer
   x = 6,462,748.74