Finding the Third Proportional to 1,007,494.31 and 2,128,705.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,007,494.31 : 2,128,705.31 = 2,128,705.31 : x
2. Step 2: Convert to fraction form
   1,007,494.31/2,128,705.31 = 2,128,705.31/x
3. Step 3: Cross multiply
   1,007,494.31x = 2,128,705.31 × 2,128,705.31
4. Step 4: Simplify right side
   1,007,494.31x = 4,531,386,307,465.72
5. Step 5: Solve for x
   x = 4,531,386,307,465.72/1,007,494.31
6. Step 6: Final answer
   x = 4,497,679.29