Finding the Third Proportional to 31,191,550 and 69,555,036

Step by Step Solution

1. Step 1: Write the proportion equation
   31,191,550 : 69,555,036 = 69,555,036 : x
2. Step 2: Convert to fraction form
   31,191,550/69,555,036 = 69,555,036/x
3. Step 3: Cross multiply
   31,191,550x = 69,555,036 × 69,555,036
4. Step 4: Simplify right side
   31,191,550x = 4,837,903,032,961,296
5. Step 5: Solve for x
   x = 4,837,903,032,961,296/31,191,550
6. Step 6: Final answer
   x = 155,103,001.71