Finding the Third Proportional to 42,748,567 and 86,686,662.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,748,567 : 86,686,662.50 = 86,686,662.50 : x
2. Step 2: Convert to fraction form
   42,748,567/86,686,662.50 = 86,686,662.50/x
3. Step 3: Cross multiply
   42,748,567x = 86,686,662.50 × 86,686,662.50
4. Step 4: Simplify right side
   42,748,567x = 7,514,577,455,388,906
5. Step 5: Solve for x
   x = 7,514,577,455,388,906/42,748,567
6. Step 6: Final answer
   x = 175,785,482.01