Finding the Third Proportional to 91,920,934 and 196,955,576.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,920,934 : 196,955,576.50 = 196,955,576.50 : x
2. Step 2: Convert to fraction form
   91,920,934/196,955,576.50 = 196,955,576.50/x
3. Step 3: Cross multiply
   91,920,934x = 196,955,576.50 × 196,955,576.50
4. Step 4: Simplify right side
   91,920,934x = 38,791,499,114,447,352
5. Step 5: Solve for x
   x = 38,791,499,114,447,352/91,920,934
6. Step 6: Final answer
   x = 422,009,409.90