Finding the Third Proportional to 31,528,637 and 67,919,218

Step by Step Solution

1. Step 1: Write the proportion equation
   31,528,637 : 67,919,218 = 67,919,218 : x
2. Step 2: Convert to fraction form
   31,528,637/67,919,218 = 67,919,218/x
3. Step 3: Cross multiply
   31,528,637x = 67,919,218 × 67,919,218
4. Step 4: Simplify right side
   31,528,637x = 4,613,020,173,731,524
5. Step 5: Solve for x
   x = 4,613,020,173,731,524/31,528,637
6. Step 6: Final answer
   x = 146,312,070.95