Finding the Third Proportional to 1,289,288,575.50 and 2,762,389,030.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,289,288,575.50 : 2,762,389,030.50 = 2,762,389,030.50 : x
2. Step 2: Convert to fraction form
   1,289,288,575.50/2,762,389,030.50 = 2,762,389,030.50/x
3. Step 3: Cross multiply
   1,289,288,575.50x = 2,762,389,030.50 × 2,762,389,030.50
4. Step 4: Simplify right side
   1,289,288,575.50x = 7,630,793,155,826,729,984
5. Step 5: Solve for x
   x = 7,630,793,155,826,729,984/1,289,288,575.50
6. Step 6: Final answer
   x = 5,918,607,595.56