Finding the Third Proportional to 42,393,932.50 and 91,830,740

Step by Step Solution

1. Step 1: Write the proportion equation
   42,393,932.50 : 91,830,740 = 91,830,740 : x
2. Step 2: Convert to fraction form
   42,393,932.50/91,830,740 = 91,830,740/x
3. Step 3: Cross multiply
   42,393,932.50x = 91,830,740 × 91,830,740
4. Step 4: Simplify right side
   42,393,932.50x = 8,432,884,808,947,600
5. Step 5: Solve for x
   x = 8,432,884,808,947,600/42,393,932.50
6. Step 6: Final answer
   x = 198,917,258.00