Finding the Third Proportional to 98,437,680 and 215,400,384

Step by Step Solution

1. Step 1: Write the proportion equation
   98,437,680 : 215,400,384 = 215,400,384 : x
2. Step 2: Convert to fraction form
   98,437,680/215,400,384 = 215,400,384/x
3. Step 3: Cross multiply
   98,437,680x = 215,400,384 × 215,400,384
4. Step 4: Simplify right side
   98,437,680x = 46,397,325,427,347,456
5. Step 5: Solve for x
   x = 46,397,325,427,347,456/98,437,680
6. Step 6: Final answer
   x = 471,337,047.23