Finding the Third Proportional to 31,195,620 and 67,323,672

Step by Step Solution

1. Step 1: Write the proportion equation
   31,195,620 : 67,323,672 = 67,323,672 : x
2. Step 2: Convert to fraction form
   31,195,620/67,323,672 = 67,323,672/x
3. Step 3: Cross multiply
   31,195,620x = 67,323,672 × 67,323,672
4. Step 4: Simplify right side
   31,195,620x = 4,532,476,811,563,584
5. Step 5: Solve for x
   x = 4,532,476,811,563,584/31,195,620
6. Step 6: Final answer
   x = 145,292,089.45