Finding the Third Proportional to 31,345,322 and 73,753,640

Step by Step Solution

1. Step 1: Write the proportion equation
   31,345,322 : 73,753,640 = 73,753,640 : x
2. Step 2: Convert to fraction form
   31,345,322/73,753,640 = 73,753,640/x
3. Step 3: Cross multiply
   31,345,322x = 73,753,640 × 73,753,640
4. Step 4: Simplify right side
   31,345,322x = 5,439,599,413,249,600
5. Step 5: Solve for x
   x = 5,439,599,413,249,600/31,345,322
6. Step 6: Final answer
   x = 173,537,838.06