Finding the Third Proportional to 31,988,371 and 69,073,814

Step by Step Solution

1. Step 1: Write the proportion equation
   31,988,371 : 69,073,814 = 69,073,814 : x
2. Step 2: Convert to fraction form
   31,988,371/69,073,814 = 69,073,814/x
3. Step 3: Cross multiply
   31,988,371x = 69,073,814 × 69,073,814
4. Step 4: Simplify right side
   31,988,371x = 4,771,191,780,506,596
5. Step 5: Solve for x
   x = 4,771,191,780,506,596/31,988,371
6. Step 6: Final answer
   x = 149,153,946.62