Finding the Third Proportional to 28,470,978 and 67,181,037

Step by Step Solution

1. Step 1: Write the proportion equation
   28,470,978 : 67,181,037 = 67,181,037 : x
2. Step 2: Convert to fraction form
   28,470,978/67,181,037 = 67,181,037/x
3. Step 3: Cross multiply
   28,470,978x = 67,181,037 × 67,181,037
4. Step 4: Simplify right side
   28,470,978x = 4,513,291,732,395,369
5. Step 5: Solve for x
   x = 4,513,291,732,395,369/28,470,978
6. Step 6: Final answer
   x = 158,522,539.42