Finding the Third Proportional to 91,845,124 and 198,300,840

Step by Step Solution

1. Step 1: Write the proportion equation
   91,845,124 : 198,300,840 = 198,300,840 : x
2. Step 2: Convert to fraction form
   91,845,124/198,300,840 = 198,300,840/x
3. Step 3: Cross multiply
   91,845,124x = 198,300,840 × 198,300,840
4. Step 4: Simplify right side
   91,845,124x = 39,323,223,144,705,600
5. Step 5: Solve for x
   x = 39,323,223,144,705,600/91,845,124
6. Step 6: Final answer
   x = 428,147,096.24