Finding the Third Proportional to 1,260,258 and 1,913,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,260,258 : 1,913,688 = 1,913,688 : x
2. Step 2: Convert to fraction form
   1,260,258/1,913,688 = 1,913,688/x
3. Step 3: Cross multiply
   1,260,258x = 1,913,688 × 1,913,688
4. Step 4: Simplify right side
   1,260,258x = 3,662,201,761,344
5. Step 5: Solve for x
   x = 3,662,201,761,344/1,260,258
6. Step 6: Final answer
   x = 2,905,914.31