Finding the Third Proportional to 91,949,100 and 196,390,308

Step by Step Solution

1. Step 1: Write the proportion equation
   91,949,100 : 196,390,308 = 196,390,308 : x
2. Step 2: Convert to fraction form
   91,949,100/196,390,308 = 196,390,308/x
3. Step 3: Cross multiply
   91,949,100x = 196,390,308 × 196,390,308
4. Step 4: Simplify right side
   91,949,100x = 38,569,153,076,334,864
5. Step 5: Solve for x
   x = 38,569,153,076,334,864/91,949,100
6. Step 6: Final answer
   x = 419,461,996.65