Finding the Third Proportional to 98,435,898 and 215,429,148

Step by Step Solution

1. Step 1: Write the proportion equation
   98,435,898 : 215,429,148 = 215,429,148 : x
2. Step 2: Convert to fraction form
   98,435,898/215,429,148 = 215,429,148/x
3. Step 3: Cross multiply
   98,435,898x = 215,429,148 × 215,429,148
4. Step 4: Simplify right side
   98,435,898x = 46,409,717,808,005,904
5. Step 5: Solve for x
   x = 46,409,717,808,005,904/98,435,898
6. Step 6: Final answer
   x = 471,471,472.82