Finding the Third Proportional to 31,191,554 and 69,555,052

Step by Step Solution

1. Step 1: Write the proportion equation
   31,191,554 : 69,555,052 = 69,555,052 : x
2. Step 2: Convert to fraction form
   31,191,554/69,555,052 = 69,555,052/x
3. Step 3: Cross multiply
   31,191,554x = 69,555,052 × 69,555,052
4. Step 4: Simplify right side
   31,191,554x = 4,837,905,258,722,704
5. Step 5: Solve for x
   x = 4,837,905,258,722,704/31,191,554
6. Step 6: Final answer
   x = 155,103,053.18