Finding the Third Proportional to 19,580,828.50 and 42,415,967

Step by Step Solution

1. Step 1: Write the proportion equation
   19,580,828.50 : 42,415,967 = 42,415,967 : x
2. Step 2: Convert to fraction form
   19,580,828.50/42,415,967 = 42,415,967/x
3. Step 3: Cross multiply
   19,580,828.50x = 42,415,967 × 42,415,967
4. Step 4: Simplify right side
   19,580,828.50x = 1,799,114,256,545,089
5. Step 5: Solve for x
   x = 1,799,114,256,545,089/19,580,828.50
6. Step 6: Final answer
   x = 91,881,416.38