Finding the Third Proportional to 1,191,964 and 2,598,128

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191,964 : 2,598,128 = 2,598,128 : x
2. Step 2: Convert to fraction form
   1,191,964/2,598,128 = 2,598,128/x
3. Step 3: Cross multiply
   1,191,964x = 2,598,128 × 2,598,128
4. Step 4: Simplify right side
   1,191,964x = 6,750,269,104,384
5. Step 5: Solve for x
   x = 6,750,269,104,384/1,191,964
6. Step 6: Final answer
   x = 5,663,148.47