Finding the Third Proportional to 37,906,830 and 55,438,587

Step by Step Solution

1. Step 1: Write the proportion equation
   37,906,830 : 55,438,587 = 55,438,587 : x
2. Step 2: Convert to fraction form
   37,906,830/55,438,587 = 55,438,587/x
3. Step 3: Cross multiply
   37,906,830x = 55,438,587 × 55,438,587
4. Step 4: Simplify right side
   37,906,830x = 3,073,436,928,556,569
5. Step 5: Solve for x
   x = 3,073,436,928,556,569/37,906,830
6. Step 6: Final answer
   x = 81,078,711.37