Finding the Third Proportional to 404,294,424.19 and 869,870,638.69

Step by Step Solution

1. Step 1: Write the proportion equation
   404,294,424.19 : 869,870,638.69 = 869,870,638.69 : x
2. Step 2: Convert to fraction form
   404,294,424.19/869,870,638.69 = 869,870,638.69/x
3. Step 3: Cross multiply
   404,294,424.19x = 869,870,638.69 × 869,870,638.69
4. Step 4: Simplify right side
   404,294,424.19x = 756,674,928,050,599,168
5. Step 5: Solve for x
   x = 756,674,928,050,599,168/404,294,424.19
6. Step 6: Final answer
   x = 1,871,593,776.17