Finding the Third Proportional to 31,931,330.88 and 69,907,796.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,931,330.88 : 69,907,796.38 = 69,907,796.38 : x
2. Step 2: Convert to fraction form
   31,931,330.88/69,907,796.38 = 69,907,796.38/x
3. Step 3: Cross multiply
   31,931,330.88x = 69,907,796.38 × 69,907,796.38
4. Step 4: Simplify right side
   31,931,330.88x = 4,887,099,994,008,463
5. Step 5: Solve for x
   x = 4,887,099,994,008,463/31,931,330.88
6. Step 6: Final answer
   x = 153,050,307.02