Finding the Third Proportional to 678,491,725.50 and 1,477,127,380.50

Step by Step Solution

1. Step 1: Write the proportion equation
   678,491,725.50 : 1,477,127,380.50 = 1,477,127,380.50 : x
2. Step 2: Convert to fraction form
   678,491,725.50/1,477,127,380.50 = 1,477,127,380.50/x
3. Step 3: Cross multiply
   678,491,725.50x = 1,477,127,380.50 × 1,477,127,380.50
4. Step 4: Simplify right side
   678,491,725.50x = 2,181,905,298,222,791,680
5. Step 5: Solve for x
   x = 2,181,905,298,222,791,680/678,491,725.50
6. Step 6: Final answer
   x = 3,215,817,107.59