Finding the Third Proportional to 85,109,330 and 134,789,243

Step by Step Solution

1. Step 1: Write the proportion equation
   85,109,330 : 134,789,243 = 134,789,243 : x
2. Step 2: Convert to fraction form
   85,109,330/134,789,243 = 134,789,243/x
3. Step 3: Cross multiply
   85,109,330x = 134,789,243 × 134,789,243
4. Step 4: Simplify right side
   85,109,330x = 18,168,140,028,513,048
5. Step 5: Solve for x
   x = 18,168,140,028,513,048/85,109,330
6. Step 6: Final answer
   x = 213,468,253.46