Finding the Third Proportional to 1,019,574,618.75 and 1,574,401,643.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019,574,618.75 : 1,574,401,643.25 = 1,574,401,643.25 : x
2. Step 2: Convert to fraction form
   1,019,574,618.75/1,574,401,643.25 = 1,574,401,643.25/x
3. Step 3: Cross multiply
   1,019,574,618.75x = 1,574,401,643.25 × 1,574,401,643.25
4. Step 4: Simplify right side
   1,019,574,618.75x = 2,478,740,534,268,300,288
5. Step 5: Solve for x
   x = 2,478,740,534,268,300,288/1,019,574,618.75
6. Step 6: Final answer
   x = 2,431,151,667.26