Finding the Third Proportional to 645,988,101.50 and 1,417,040,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   645,988,101.50 : 1,417,040,890.50 = 1,417,040,890.50 : x
2. Step 2: Convert to fraction form
   645,988,101.50/1,417,040,890.50 = 1,417,040,890.50/x
3. Step 3: Cross multiply
   645,988,101.50x = 1,417,040,890.50 × 1,417,040,890.50
4. Step 4: Simplify right side
   645,988,101.50x = 2,008,004,885,349,032,960
5. Step 5: Solve for x
   x = 2,008,004,885,349,032,960/645,988,101.50
6. Step 6: Final answer
   x = 3,108,423,948.81