Finding the Third Proportional to 1,018,602.50 and 2,158,628.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,602.50 : 2,158,628.50 = 2,158,628.50 : x
2. Step 2: Convert to fraction form
   1,018,602.50/2,158,628.50 = 2,158,628.50/x
3. Step 3: Cross multiply
   1,018,602.50x = 2,158,628.50 × 2,158,628.50
4. Step 4: Simplify right side
   1,018,602.50x = 4,659,677,001,012.25
5. Step 5: Solve for x
   x = 4,659,677,001,012.25/1,018,602.50
6. Step 6: Final answer
   x = 4,574,578.41