Finding the Third Proportional to 99,061 and 216,175

Step by Step Solution

1. Step 1: Write the proportion equation
   99,061 : 216,175 = 216,175 : x
2. Step 2: Convert to fraction form
   99,061/216,175 = 216,175/x
3. Step 3: Cross multiply
   99,061x = 216,175 × 216,175
4. Step 4: Simplify right side
   99,061x = 46,731,630,625
5. Step 5: Solve for x
   x = 46,731,630,625/99,061
6. Step 6: Final answer
   x = 471,746.00