Finding the Third Proportional to 21,855,409.50 and 47,666,139

Step by Step Solution

1. Step 1: Write the proportion equation
   21,855,409.50 : 47,666,139 = 47,666,139 : x
2. Step 2: Convert to fraction form
   21,855,409.50/47,666,139 = 47,666,139/x
3. Step 3: Cross multiply
   21,855,409.50x = 47,666,139 × 47,666,139
4. Step 4: Simplify right side
   21,855,409.50x = 2,272,060,807,167,321
5. Step 5: Solve for x
   x = 2,272,060,807,167,321/21,855,409.50
6. Step 6: Final answer
   x = 103,958,738.78