Finding the Third Proportional to 127,980,880 and 206,091,384

Step by Step Solution

1. Step 1: Write the proportion equation
   127,980,880 : 206,091,384 = 206,091,384 : x
2. Step 2: Convert to fraction form
   127,980,880/206,091,384 = 206,091,384/x
3. Step 3: Cross multiply
   127,980,880x = 206,091,384 × 206,091,384
4. Step 4: Simplify right side
   127,980,880x = 42,473,658,559,035,456
5. Step 5: Solve for x
   x = 42,473,658,559,035,456/127,980,880
6. Step 6: Final answer
   x = 331,875,031.33