Finding the Third Proportional to 56,900,099 and 81,309,028

Step by Step Solution

1. Step 1: Write the proportion equation
   56,900,099 : 81,309,028 = 81,309,028 : x
2. Step 2: Convert to fraction form
   56,900,099/81,309,028 = 81,309,028/x
3. Step 3: Cross multiply
   56,900,099x = 81,309,028 × 81,309,028
4. Step 4: Simplify right side
   56,900,099x = 6,611,158,034,304,784
5. Step 5: Solve for x
   x = 6,611,158,034,304,784/56,900,099
6. Step 6: Final answer
   x = 116,188,866.99