Finding the Third Proportional to 31,045,988 and 65,308,972

Step by Step Solution

1. Step 1: Write the proportion equation
   31,045,988 : 65,308,972 = 65,308,972 : x
2. Step 2: Convert to fraction form
   31,045,988/65,308,972 = 65,308,972/x
3. Step 3: Cross multiply
   31,045,988x = 65,308,972 × 65,308,972
4. Step 4: Simplify right side
   31,045,988x = 4,265,261,823,696,784
5. Step 5: Solve for x
   x = 4,265,261,823,696,784/31,045,988
6. Step 6: Final answer
   x = 137,385,282.24