Finding the Third Proportional to 31,563,122 and 67,920,148

Step by Step Solution

1. Step 1: Write the proportion equation
   31,563,122 : 67,920,148 = 67,920,148 : x
2. Step 2: Convert to fraction form
   31,563,122/67,920,148 = 67,920,148/x
3. Step 3: Cross multiply
   31,563,122x = 67,920,148 × 67,920,148
4. Step 4: Simplify right side
   31,563,122x = 4,613,146,504,341,904
5. Step 5: Solve for x
   x = 4,613,146,504,341,904/31,563,122
6. Step 6: Final answer
   x = 146,156,216.88