Finding the Third Proportional to 189,400,562 and 406,997,002

Step by Step Solution

1. Step 1: Write the proportion equation
   189,400,562 : 406,997,002 = 406,997,002 : x
2. Step 2: Convert to fraction form
   189,400,562/406,997,002 = 406,997,002/x
3. Step 3: Cross multiply
   189,400,562x = 406,997,002 × 406,997,002
4. Step 4: Simplify right side
   189,400,562x = 165,646,559,636,988,000
5. Step 5: Solve for x
   x = 165,646,559,636,988,000/189,400,562
6. Step 6: Final answer
   x = 874,583,253.02